./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/bin/uautomizer-verify-4GaUIPS5ZU --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 2f8161fc7f730bddeac54a8f174c52e5ef9cd819e9497e3a4087e68b96d46105 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:15:51,215 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:15:51,286 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:15:51,291 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:15:51,292 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:15:51,318 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:15:51,319 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:15:51,319 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:15:51,320 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:15:51,320 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:15:51,321 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:15:51,321 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:15:51,322 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:15:51,323 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:15:51,323 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:15:51,323 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:15:51,324 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:15:51,324 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:15:51,325 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:15:51,325 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:15:51,325 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:15:51,326 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:15:51,327 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:15:51,327 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:15:51,327 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:15:51,328 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:15:51,328 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:15:51,329 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:15:51,329 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:15:51,329 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:15:51,330 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:15:51,330 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:15:51,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:15:51,331 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:15:51,331 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:15:51,331 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:15:51,332 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:15:51,332 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:15:51,332 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:15:51,333 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:15:51,333 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:15:51,334 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:15:51,334 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f8161fc7f730bddeac54a8f174c52e5ef9cd819e9497e3a4087e68b96d46105 [2024-10-31 22:15:51,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:15:51,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:15:51,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:15:51,658 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:15:51,659 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:15:51,660 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.i Unable to find full path for "g++" [2024-10-31 22:15:53,823 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:15:54,130 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:15:54,131 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.i [2024-10-31 22:15:54,152 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/bin/uautomizer-verify-4GaUIPS5ZU/data/18a363c60/66774ee968a64e6aa9c8dccda5ac4b0c/FLAG594049883 [2024-10-31 22:15:54,175 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/bin/uautomizer-verify-4GaUIPS5ZU/data/18a363c60/66774ee968a64e6aa9c8dccda5ac4b0c [2024-10-31 22:15:54,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:15:54,179 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:15:54,181 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:15:54,181 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:15:54,188 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:15:54,189 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:15:54" (1/1) ... [2024-10-31 22:15:54,192 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21a2a294 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:54, skipping insertion in model container [2024-10-31 22:15:54,192 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:15:54" (1/1) ... [2024-10-31 22:15:54,256 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:15:54,715 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.i[22569,22582] [2024-10-31 22:15:54,727 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.i[22645,22658] [2024-10-31 22:15:54,734 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.i[22715,22728] [2024-10-31 22:15:54,736 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.i[22822,22835] [2024-10-31 22:15:54,737 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.i[22894,22907] [2024-10-31 22:15:54,739 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.i[23045,23058] [2024-10-31 22:15:54,744 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.i[23119,23132] [2024-10-31 22:15:54,756 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:15:54,778 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:15:54,832 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.i[22569,22582] [2024-10-31 22:15:54,836 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.i[22645,22658] [2024-10-31 22:15:54,837 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.i[22715,22728] [2024-10-31 22:15:54,838 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.i[22822,22835] [2024-10-31 22:15:54,842 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.i[22894,22907] [2024-10-31 22:15:54,844 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.i[23045,23058] [2024-10-31 22:15:54,845 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.i[23119,23132] [2024-10-31 22:15:54,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:15:54,887 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:15:54,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:54 WrapperNode [2024-10-31 22:15:54,888 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:15:54,889 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:15:54,889 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:15:54,889 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:15:54,896 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:54" (1/1) ... [2024-10-31 22:15:54,920 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:54" (1/1) ... [2024-10-31 22:15:54,962 INFO L138 Inliner]: procedures = 119, calls = 39, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 151 [2024-10-31 22:15:54,962 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:15:54,963 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:15:54,963 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:15:54,963 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:15:54,975 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:54" (1/1) ... [2024-10-31 22:15:54,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:54" (1/1) ... [2024-10-31 22:15:54,979 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:54" (1/1) ... [2024-10-31 22:15:54,994 INFO L175 MemorySlicer]: Split 29 memory accesses to 2 slices as follows [2, 27]. 93 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 12 writes are split as follows [0, 12]. [2024-10-31 22:15:54,995 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:54" (1/1) ... [2024-10-31 22:15:54,995 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:54" (1/1) ... [2024-10-31 22:15:55,009 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:54" (1/1) ... [2024-10-31 22:15:55,016 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:54" (1/1) ... [2024-10-31 22:15:55,019 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:54" (1/1) ... [2024-10-31 22:15:55,024 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:54" (1/1) ... [2024-10-31 22:15:55,027 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:15:55,028 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:15:55,030 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:15:55,031 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:15:55,032 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:54" (1/1) ... [2024-10-31 22:15:55,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:15:55,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:55,067 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:15:55,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:15:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:15:55,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 22:15:55,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:15:55,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 22:15:55,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:15:55,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:15:55,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-31 22:15:55,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-31 22:15:55,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-31 22:15:55,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-31 22:15:55,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:15:55,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:15:55,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:15:55,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:15:55,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:15:55,238 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:15:55,240 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:15:55,549 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-10-31 22:15:55,549 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:15:55,566 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:15:55,566 INFO L316 CfgBuilder]: Removed 17 assume(true) statements. [2024-10-31 22:15:55,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:15:55 BoogieIcfgContainer [2024-10-31 22:15:55,566 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:15:55,571 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:15:55,571 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:15:55,576 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:15:55,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:15:54" (1/3) ... [2024-10-31 22:15:55,577 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3742a879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:15:55, skipping insertion in model container [2024-10-31 22:15:55,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:54" (2/3) ... [2024-10-31 22:15:55,578 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3742a879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:15:55, skipping insertion in model container [2024-10-31 22:15:55,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:15:55" (3/3) ... [2024-10-31 22:15:55,579 INFO L112 eAbstractionObserver]: Analyzing ICFG dll-rb-cnstr_1-1.i [2024-10-31 22:15:55,595 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:15:55,595 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-10-31 22:15:55,655 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:15:55,663 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;@3f621534, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:15:55,663 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-31 22:15:55,668 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 39 states have (on average 1.9487179487179487) internal successors, (76), 46 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) [2024-10-31 22:15:55,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-31 22:15:55,675 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:55,675 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:15:55,677 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-10-31 22:15:55,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:55,684 INFO L85 PathProgramCache]: Analyzing trace with hash 891600134, now seen corresponding path program 1 times [2024-10-31 22:15:55,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:55,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450003473] [2024-10-31 22:15:55,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:55,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:55,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:55,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:55,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:55,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450003473] [2024-10-31 22:15:55,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450003473] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:55,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:55,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:55,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276958409] [2024-10-31 22:15:55,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:55,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:15:55,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:55,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:15:55,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:15:55,961 INFO L87 Difference]: Start difference. First operand has 47 states, 39 states have (on average 1.9487179487179487) internal successors, (76), 46 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) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2024-10-31 22:15:55,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:55,979 INFO L93 Difference]: Finished difference Result 92 states and 150 transitions. [2024-10-31 22:15:55,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:15:55,982 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2024-10-31 22:15:55,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:55,991 INFO L225 Difference]: With dead ends: 92 [2024-10-31 22:15:55,991 INFO L226 Difference]: Without dead ends: 41 [2024-10-31 22:15:55,994 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 [2024-10-31 22:15:55,998 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:56,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:15:56,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-10-31 22:15:56,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-10-31 22:15:56,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 40 states have internal predecessors, (44), 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) [2024-10-31 22:15:56,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2024-10-31 22:15:56,043 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 6 [2024-10-31 22:15:56,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:56,049 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2024-10-31 22:15:56,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2024-10-31 22:15:56,050 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2024-10-31 22:15:56,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-31 22:15:56,050 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:56,050 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:56,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:15:56,052 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-10-31 22:15:56,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:56,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1806905862, now seen corresponding path program 1 times [2024-10-31 22:15:56,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:56,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788616015] [2024-10-31 22:15:56,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:56,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:56,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:56,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:56,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:56,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788616015] [2024-10-31 22:15:56,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788616015] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:56,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:56,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:15:56,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078508538] [2024-10-31 22:15:56,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:56,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:15:56,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:56,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:15:56,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:15:56,222 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2024-10-31 22:15:56,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:56,310 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2024-10-31 22:15:56,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:15:56,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2024-10-31 22:15:56,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:56,312 INFO L225 Difference]: With dead ends: 44 [2024-10-31 22:15:56,312 INFO L226 Difference]: Without dead ends: 40 [2024-10-31 22:15:56,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:15:56,314 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 64 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:56,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 37 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:15:56,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-10-31 22:15:56,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 37. [2024-10-31 22:15:56,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 32 states have (on average 1.25) internal successors, (40), 36 states have internal predecessors, (40), 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) [2024-10-31 22:15:56,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2024-10-31 22:15:56,331 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 7 [2024-10-31 22:15:56,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:56,331 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2024-10-31 22:15:56,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2024-10-31 22:15:56,332 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2024-10-31 22:15:56,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-31 22:15:56,333 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:56,333 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:56,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:15:56,334 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-10-31 22:15:56,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:56,335 INFO L85 PathProgramCache]: Analyzing trace with hash 179566605, now seen corresponding path program 1 times [2024-10-31 22:15:56,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:56,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320592873] [2024-10-31 22:15:56,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:56,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:56,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:56,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:56,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:56,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320592873] [2024-10-31 22:15:56,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320592873] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:56,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:56,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:15:56,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916821970] [2024-10-31 22:15:56,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:56,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:15:56,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:56,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:15:56,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:15:56,762 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2024-10-31 22:15:56,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:56,862 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2024-10-31 22:15:56,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:15:56,864 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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 [2024-10-31 22:15:56,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:56,865 INFO L225 Difference]: With dead ends: 37 [2024-10-31 22:15:56,865 INFO L226 Difference]: Without dead ends: 35 [2024-10-31 22:15:56,866 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:15:56,869 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 12 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:56,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 78 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:15:56,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-10-31 22:15:56,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-10-31 22:15:56,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 34 states have internal predecessors, (38), 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) [2024-10-31 22:15:56,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2024-10-31 22:15:56,885 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 8 [2024-10-31 22:15:56,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:56,886 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2024-10-31 22:15:56,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2024-10-31 22:15:56,886 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2024-10-31 22:15:56,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-31 22:15:56,887 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:56,887 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:56,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:15:56,888 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-10-31 22:15:56,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:56,889 INFO L85 PathProgramCache]: Analyzing trace with hash 711412120, now seen corresponding path program 1 times [2024-10-31 22:15:56,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:56,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828869426] [2024-10-31 22:15:56,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:56,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:56,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:57,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:57,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:57,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828869426] [2024-10-31 22:15:57,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828869426] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:57,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:57,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:15:57,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218800445] [2024-10-31 22:15:57,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:57,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:15:57,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:57,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:15:57,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:15:57,068 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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) [2024-10-31 22:15:57,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:57,264 INFO L93 Difference]: Finished difference Result 60 states and 66 transitions. [2024-10-31 22:15:57,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:15:57,265 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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 10 [2024-10-31 22:15:57,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:57,267 INFO L225 Difference]: With dead ends: 60 [2024-10-31 22:15:57,269 INFO L226 Difference]: Without dead ends: 58 [2024-10-31 22:15:57,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:15:57,271 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 42 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:57,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 90 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:15:57,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-10-31 22:15:57,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 42. [2024-10-31 22:15:57,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 38 states have (on average 1.2105263157894737) internal successors, (46), 41 states have internal predecessors, (46), 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) [2024-10-31 22:15:57,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2024-10-31 22:15:57,293 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 10 [2024-10-31 22:15:57,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:57,294 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2024-10-31 22:15:57,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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) [2024-10-31 22:15:57,297 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2024-10-31 22:15:57,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-31 22:15:57,298 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:57,298 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:57,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:15:57,299 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-10-31 22:15:57,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:57,300 INFO L85 PathProgramCache]: Analyzing trace with hash -2056579816, now seen corresponding path program 1 times [2024-10-31 22:15:57,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:57,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908185965] [2024-10-31 22:15:57,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:57,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:57,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:57,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:57,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:57,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908185965] [2024-10-31 22:15:57,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908185965] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:57,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:57,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:15:57,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061699047] [2024-10-31 22:15:57,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:57,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:15:57,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:57,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:15:57,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:15:57,620 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2024-10-31 22:15:57,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:57,743 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2024-10-31 22:15:57,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:15:57,744 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 [2024-10-31 22:15:57,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:57,745 INFO L225 Difference]: With dead ends: 42 [2024-10-31 22:15:57,745 INFO L226 Difference]: Without dead ends: 40 [2024-10-31 22:15:57,745 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:15:57,746 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 7 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:57,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 70 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:15:57,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-10-31 22:15:57,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-10-31 22:15:57,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 39 states have internal predecessors, (44), 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) [2024-10-31 22:15:57,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2024-10-31 22:15:57,761 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 11 [2024-10-31 22:15:57,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:57,762 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2024-10-31 22:15:57,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2024-10-31 22:15:57,762 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2024-10-31 22:15:57,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-31 22:15:57,763 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:57,763 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:57,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:15:57,764 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-10-31 22:15:57,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:57,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1285114177, now seen corresponding path program 1 times [2024-10-31 22:15:57,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:57,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041048121] [2024-10-31 22:15:57,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:57,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:57,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:57,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:57,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:57,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041048121] [2024-10-31 22:15:57,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041048121] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:57,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:57,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:15:57,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127451699] [2024-10-31 22:15:57,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:57,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:15:57,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:57,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:15:57,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:15:57,863 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2024-10-31 22:15:57,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:57,997 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2024-10-31 22:15:57,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:15:57,998 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 14 [2024-10-31 22:15:57,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:57,999 INFO L225 Difference]: With dead ends: 55 [2024-10-31 22:15:57,999 INFO L226 Difference]: Without dead ends: 43 [2024-10-31 22:15:58,000 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:15:58,000 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 12 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:58,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 79 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:15:58,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-10-31 22:15:58,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2024-10-31 22:15:58,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 39 states have (on average 1.1794871794871795) internal successors, (46), 41 states have internal predecessors, (46), 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) [2024-10-31 22:15:58,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2024-10-31 22:15:58,013 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 14 [2024-10-31 22:15:58,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:58,014 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2024-10-31 22:15:58,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2024-10-31 22:15:58,014 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2024-10-31 22:15:58,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-31 22:15:58,016 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:58,016 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:58,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:15:58,017 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-10-31 22:15:58,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:58,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1621160418, now seen corresponding path program 1 times [2024-10-31 22:15:58,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:58,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061080266] [2024-10-31 22:15:58,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:58,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:58,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:58,223 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:58,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:58,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061080266] [2024-10-31 22:15:58,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061080266] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:15:58,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1447492404] [2024-10-31 22:15:58,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:58,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:58,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:58,227 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:58,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:15:58,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:58,336 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-31 22:15:58,342 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:58,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 7 [2024-10-31 22:15:58,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2024-10-31 22:15:58,708 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:58,709 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:15:58,843 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:58,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1447492404] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:15:58,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:15:58,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-10-31 22:15:58,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72165776] [2024-10-31 22:15:58,845 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:15:58,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:15:58,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:58,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:15:58,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:15:58,849 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 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) [2024-10-31 22:15:59,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:59,122 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2024-10-31 22:15:59,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:15:59,123 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 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 17 [2024-10-31 22:15:59,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:59,124 INFO L225 Difference]: With dead ends: 59 [2024-10-31 22:15:59,124 INFO L226 Difference]: Without dead ends: 37 [2024-10-31 22:15:59,125 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:15:59,125 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 22 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:59,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 129 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:15:59,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-10-31 22:15:59,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-10-31 22:15:59,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 36 states have internal predecessors, (40), 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) [2024-10-31 22:15:59,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2024-10-31 22:15:59,138 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 17 [2024-10-31 22:15:59,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:59,138 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2024-10-31 22:15:59,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 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) [2024-10-31 22:15:59,138 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2024-10-31 22:15:59,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-31 22:15:59,139 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:59,142 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] [2024-10-31 22:15:59,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:15:59,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:59,344 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-10-31 22:15:59,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:59,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1036168340, now seen corresponding path program 1 times [2024-10-31 22:15:59,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:59,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737113329] [2024-10-31 22:15:59,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:59,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:00,113 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:00,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:00,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737113329] [2024-10-31 22:16:00,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737113329] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:16:00,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381610461] [2024-10-31 22:16:00,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:00,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:16:00,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:00,117 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:16:00,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:16:00,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:00,273 INFO L255 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-10-31 22:16:00,278 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:16:00,295 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 [2024-10-31 22:16:00,310 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-31 22:16:00,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-31 22:16:00,396 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2024-10-31 22:16:00,408 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 0 case distinctions, treesize of input 18 treesize of output 18 [2024-10-31 22:16:00,415 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 30 treesize of output 22 [2024-10-31 22:16:00,421 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 10 treesize of output 8 [2024-10-31 22:16:00,451 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-10-31 22:16:00,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2024-10-31 22:16:00,495 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-10-31 22:16:00,496 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 [2024-10-31 22:16:00,520 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-10-31 22:16:00,612 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 81 treesize of output 56 [2024-10-31 22:16:00,629 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 100 treesize of output 60 [2024-10-31 22:16:00,650 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 75 treesize of output 50 [2024-10-31 22:16:00,677 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 94 treesize of output 58 [2024-10-31 22:16:00,699 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 87 treesize of output 62 [2024-10-31 22:16:00,717 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 81 treesize of output 56 [2024-10-31 22:16:00,732 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 115 treesize of output 75 [2024-10-31 22:16:00,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-31 22:16:00,747 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 21 treesize of output 11 [2024-10-31 22:16:00,765 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-31 22:16:00,766 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 1 case distinctions, treesize of input 16 treesize of output 14 [2024-10-31 22:16:00,895 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:00,895 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:16:00,960 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:16:00,960 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 33 treesize of output 34 [2024-10-31 22:16:00,965 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 71 treesize of output 51 [2024-10-31 22:16:00,972 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 24 treesize of output 22 [2024-10-31 22:16:01,173 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:16:01,174 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 231 treesize of output 192 [2024-10-31 22:16:01,186 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 403 treesize of output 307 [2024-10-31 22:16:01,200 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 268 treesize of output 256 [2024-10-31 22:16:04,282 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:04,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381610461] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:16:04,282 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:16:04,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-10-31 22:16:04,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133241798] [2024-10-31 22:16:04,283 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:16:04,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-31 22:16:04,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:04,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-31 22:16:04,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=116, Unknown=1, NotChecked=0, Total=156 [2024-10-31 22:16:04,284 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 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) [2024-10-31 22:16:05,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:16:05,036 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2024-10-31 22:16:05,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:16:05,036 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 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 21 [2024-10-31 22:16:05,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:16:05,037 INFO L225 Difference]: With dead ends: 49 [2024-10-31 22:16:05,037 INFO L226 Difference]: Without dead ends: 47 [2024-10-31 22:16:05,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=79, Invalid=192, Unknown=1, NotChecked=0, Total=272 [2024-10-31 22:16:05,039 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 112 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-31 22:16:05,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 108 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-31 22:16:05,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-10-31 22:16:05,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 35. [2024-10-31 22:16:05,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 34 states have internal predecessors, (38), 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) [2024-10-31 22:16:05,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2024-10-31 22:16:05,049 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 21 [2024-10-31 22:16:05,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:16:05,050 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2024-10-31 22:16:05,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 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) [2024-10-31 22:16:05,050 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2024-10-31 22:16:05,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-31 22:16:05,051 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:16:05,051 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:05,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-31 22:16:05,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:16:05,252 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-10-31 22:16:05,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:05,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1438350182, now seen corresponding path program 1 times [2024-10-31 22:16:05,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:05,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344508577] [2024-10-31 22:16:05,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:05,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:05,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:06,467 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:06,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:06,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344508577] [2024-10-31 22:16:06,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344508577] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:16:06,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354144818] [2024-10-31 22:16:06,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:06,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:16:06,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:06,470 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:16:06,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83ffab16-73e1-4275-a8a9-c54f7abed677/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 22:16:06,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:06,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-10-31 22:16:06,634 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:16:06,644 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 [2024-10-31 22:16:06,709 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 0 case distinctions, treesize of input 35 treesize of output 26 [2024-10-31 22:16:06,730 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-10-31 22:16:06,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 35 [2024-10-31 22:16:06,735 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 [2024-10-31 22:16:06,742 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 [2024-10-31 22:16:06,770 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-10-31 22:16:06,770 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 [2024-10-31 22:16:06,788 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 [2024-10-31 22:16:06,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-31 22:16:06,795 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 [2024-10-31 22:16:06,810 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-10-31 22:16:06,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-31 22:16:06,912 INFO L349 Elim1Store]: treesize reduction 82, result has 1.2 percent of original size [2024-10-31 22:16:06,912 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 118 treesize of output 86 [2024-10-31 22:16:06,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-31 22:16:06,956 INFO L349 Elim1Store]: treesize reduction 33, result has 29.8 percent of original size [2024-10-31 22:16:06,956 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 100 treesize of output 86 [2024-10-31 22:16:06,981 INFO L349 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2024-10-31 22:16:06,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22 [2024-10-31 22:16:06,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-31 22:16:06,996 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 29 treesize of output 26 [2024-10-31 22:16:07,001 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 12 treesize of output 11 [2024-10-31 22:16:07,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2024-10-31 22:16:07,027 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-31 22:16:07,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-31 22:16:07,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 19 treesize of output 7 [2024-10-31 22:16:07,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2024-10-31 22:16:07,779 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-31 22:16:07,780 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 [2024-10-31 22:16:07,783 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:16:07,784 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:16:08,256 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:16:08,256 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 241 treesize of output 214 [2024-10-31 22:16:08,275 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 255 treesize of output 192 [2024-10-31 22:16:08,288 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:16:08,289 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 214 treesize of output 208 [2024-10-31 22:16:09,172 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:16:09,173 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 3121 treesize of output 2474 [2024-10-31 22:16:09,198 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:16:09,198 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 2465 treesize of output 1722