./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fc74ae7e31589f228260101e75826f872a5ff2be20b18370840af309ca05fc6e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 18:33:12,951 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 18:33:13,022 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 18:33:13,028 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 18:33:13,029 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 18:33:13,054 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 18:33:13,055 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 18:33:13,055 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 18:33:13,056 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 18:33:13,059 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 18:33:13,060 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 18:33:13,060 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 18:33:13,061 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 18:33:13,061 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 18:33:13,061 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 18:33:13,061 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 18:33:13,062 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 18:33:13,062 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 18:33:13,062 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 18:33:13,062 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 18:33:13,063 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 18:33:13,065 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 18:33:13,066 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 18:33:13,066 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 18:33:13,066 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 18:33:13,066 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 18:33:13,066 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 18:33:13,067 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 18:33:13,067 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 18:33:13,067 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 18:33:13,067 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 18:33:13,068 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 18:33:13,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 18:33:13,068 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 18:33:13,068 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 18:33:13,069 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 18:33:13,069 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 18:33:13,070 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 18:33:13,071 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 18:33:13,071 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 18:33:13,071 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 18:33:13,071 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 18:33:13,072 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fc74ae7e31589f228260101e75826f872a5ff2be20b18370840af309ca05fc6e [2024-10-12 18:33:13,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 18:33:13,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 18:33:13,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 18:33:13,332 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 18:33:13,332 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 18:33:13,333 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c [2024-10-12 18:33:14,737 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 18:33:14,933 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 18:33:14,934 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c [2024-10-12 18:33:14,943 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d99736648/cccd03b664d241bd95c64dc6c035f375/FLAGecc7b5db0 [2024-10-12 18:33:14,956 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d99736648/cccd03b664d241bd95c64dc6c035f375 [2024-10-12 18:33:14,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 18:33:14,960 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 18:33:14,961 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 18:33:14,961 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 18:33:14,966 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 18:33:14,967 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:33:14" (1/1) ... [2024-10-12 18:33:14,967 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@161b78df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:33:14, skipping insertion in model container [2024-10-12 18:33:14,967 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:33:14" (1/1) ... [2024-10-12 18:33:14,992 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 18:33:15,135 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[1123,1136] [2024-10-12 18:33:15,139 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[1338,1351] [2024-10-12 18:33:15,141 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[1654,1667] [2024-10-12 18:33:15,143 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[1869,1882] [2024-10-12 18:33:15,150 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[2402,2415] [2024-10-12 18:33:15,153 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[2617,2630] [2024-10-12 18:33:15,156 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[2919,2932] [2024-10-12 18:33:15,157 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[3134,3147] [2024-10-12 18:33:15,159 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[3404,3417] [2024-10-12 18:33:15,160 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[3622,3635] [2024-10-12 18:33:15,162 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[4106,4119] [2024-10-12 18:33:15,164 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[4324,4337] [2024-10-12 18:33:15,169 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[4820,4833] [2024-10-12 18:33:15,170 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[5221,5234] [2024-10-12 18:33:15,176 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[5439,5452] [2024-10-12 18:33:15,177 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[5881,5894] [2024-10-12 18:33:15,180 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[6099,6112] [2024-10-12 18:33:15,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 18:33:15,193 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 18:33:15,207 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[1123,1136] [2024-10-12 18:33:15,209 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[1338,1351] [2024-10-12 18:33:15,211 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[1654,1667] [2024-10-12 18:33:15,212 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[1869,1882] [2024-10-12 18:33:15,216 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[2402,2415] [2024-10-12 18:33:15,217 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[2617,2630] [2024-10-12 18:33:15,218 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[2919,2932] [2024-10-12 18:33:15,219 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[3134,3147] [2024-10-12 18:33:15,221 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[3404,3417] [2024-10-12 18:33:15,222 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[3622,3635] [2024-10-12 18:33:15,224 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[4106,4119] [2024-10-12 18:33:15,225 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[4324,4337] [2024-10-12 18:33:15,227 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[4820,4833] [2024-10-12 18:33:15,228 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[5221,5234] [2024-10-12 18:33:15,233 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[5439,5452] [2024-10-12 18:33:15,234 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[5881,5894] [2024-10-12 18:33:15,235 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+nlh-reducer.c[6099,6112] [2024-10-12 18:33:15,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 18:33:15,256 INFO L204 MainTranslator]: Completed translation [2024-10-12 18:33:15,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:33:15 WrapperNode [2024-10-12 18:33:15,257 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 18:33:15,258 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 18:33:15,258 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 18:33:15,258 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 18:33:15,263 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:33:15" (1/1) ... [2024-10-12 18:33:15,270 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:33:15" (1/1) ... [2024-10-12 18:33:15,295 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 261 [2024-10-12 18:33:15,295 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 18:33:15,296 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 18:33:15,296 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 18:33:15,296 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 18:33:15,304 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:33:15" (1/1) ... [2024-10-12 18:33:15,304 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:33:15" (1/1) ... [2024-10-12 18:33:15,321 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:33:15" (1/1) ... [2024-10-12 18:33:15,340 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-12 18:33:15,344 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:33:15" (1/1) ... [2024-10-12 18:33:15,344 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:33:15" (1/1) ... [2024-10-12 18:33:15,348 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:33:15" (1/1) ... [2024-10-12 18:33:15,353 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:33:15" (1/1) ... [2024-10-12 18:33:15,354 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:33:15" (1/1) ... [2024-10-12 18:33:15,355 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:33:15" (1/1) ... [2024-10-12 18:33:15,358 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 18:33:15,359 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 18:33:15,362 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 18:33:15,362 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 18:33:15,363 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:33:15" (1/1) ... [2024-10-12 18:33:15,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 18:33:15,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 18:33:15,416 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 18:33:15,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 18:33:15,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 18:33:15,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 18:33:15,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 18:33:15,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 18:33:15,573 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 18:33:15,575 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 18:33:15,868 INFO L? ?]: Removed 83 outVars from TransFormulas that were not future-live. [2024-10-12 18:33:15,868 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 18:33:15,899 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 18:33:15,899 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-12 18:33:15,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:33:15 BoogieIcfgContainer [2024-10-12 18:33:15,900 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 18:33:15,903 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 18:33:15,903 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 18:33:15,907 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 18:33:15,907 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:33:14" (1/3) ... [2024-10-12 18:33:15,908 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703954bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:33:15, skipping insertion in model container [2024-10-12 18:33:15,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:33:15" (2/3) ... [2024-10-12 18:33:15,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703954bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:33:15, skipping insertion in model container [2024-10-12 18:33:15,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:33:15" (3/3) ... [2024-10-12 18:33:15,911 INFO L112 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.v+nlh-reducer.c [2024-10-12 18:33:15,927 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 18:33:15,927 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2024-10-12 18:33:15,993 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 18:33:16,001 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;@2aebabbf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 18:33:16,001 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-10-12 18:33:16,005 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 51 states have (on average 1.8823529411764706) internal successors, (96), 68 states have internal predecessors, (96), 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) [2024-10-12 18:33:16,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-12 18:33:16,012 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:33:16,012 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:33:16,013 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-10-12 18:33:16,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:33:16,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1273763384, now seen corresponding path program 1 times [2024-10-12 18:33:16,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:33:16,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377341104] [2024-10-12 18:33:16,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:33:16,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:33:16,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:33:16,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:33:16,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:33:16,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377341104] [2024-10-12 18:33:16,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377341104] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 18:33:16,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 18:33:16,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 18:33:16,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834003045] [2024-10-12 18:33:16,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 18:33:16,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 18:33:16,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:33:16,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 18:33:16,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 18:33:16,371 INFO L87 Difference]: Start difference. First operand has 69 states, 51 states have (on average 1.8823529411764706) internal successors, (96), 68 states have internal predecessors, (96), 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 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) [2024-10-12 18:33:16,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:33:16,482 INFO L93 Difference]: Finished difference Result 80 states and 108 transitions. [2024-10-12 18:33:16,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 18:33:16,486 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 [2024-10-12 18:33:16,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:33:16,495 INFO L225 Difference]: With dead ends: 80 [2024-10-12 18:33:16,495 INFO L226 Difference]: Without dead ends: 72 [2024-10-12 18:33:16,499 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 [2024-10-12 18:33:16,504 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 10 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 18:33:16,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 175 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 18:33:16,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-10-12 18:33:16,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 64. [2024-10-12 18:33:16,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 48 states have (on average 1.4166666666666667) internal successors, (68), 63 states have internal predecessors, (68), 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) [2024-10-12 18:33:16,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2024-10-12 18:33:16,559 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 7 [2024-10-12 18:33:16,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:33:16,559 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2024-10-12 18:33:16,560 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) [2024-10-12 18:33:16,560 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2024-10-12 18:33:16,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-12 18:33:16,561 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:33:16,561 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:33:16,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 18:33:16,562 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-10-12 18:33:16,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:33:16,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1277398875, now seen corresponding path program 1 times [2024-10-12 18:33:16,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:33:16,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722273816] [2024-10-12 18:33:16,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:33:16,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:33:16,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:33:16,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:33:16,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:33:16,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722273816] [2024-10-12 18:33:16,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722273816] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 18:33:16,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 18:33:16,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 18:33:16,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10108074] [2024-10-12 18:33:16,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 18:33:16,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 18:33:16,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:33:16,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 18:33:16,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 18:33:16,719 INFO L87 Difference]: Start difference. First operand 64 states and 68 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) [2024-10-12 18:33:16,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:33:16,808 INFO L93 Difference]: Finished difference Result 64 states and 68 transitions. [2024-10-12 18:33:16,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 18:33:16,808 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 [2024-10-12 18:33:16,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:33:16,811 INFO L225 Difference]: With dead ends: 64 [2024-10-12 18:33:16,812 INFO L226 Difference]: Without dead ends: 62 [2024-10-12 18:33:16,812 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 [2024-10-12 18:33:16,813 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 46 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 18:33:16,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 86 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 18:33:16,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-10-12 18:33:16,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-10-12 18:33:16,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 47 states have (on average 1.4042553191489362) internal successors, (66), 61 states have internal predecessors, (66), 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) [2024-10-12 18:33:16,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2024-10-12 18:33:16,824 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 7 [2024-10-12 18:33:16,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:33:16,824 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2024-10-12 18:33:16,825 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) [2024-10-12 18:33:16,825 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2024-10-12 18:33:16,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-12 18:33:16,825 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:33:16,825 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:33:16,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 18:33:16,826 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-10-12 18:33:16,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:33:16,826 INFO L85 PathProgramCache]: Analyzing trace with hash -944655405, now seen corresponding path program 1 times [2024-10-12 18:33:16,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:33:16,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269178910] [2024-10-12 18:33:16,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:33:16,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:33:16,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:33:16,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:33:16,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:33:16,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269178910] [2024-10-12 18:33:16,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269178910] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 18:33:16,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 18:33:16,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 18:33:16,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693691915] [2024-10-12 18:33:16,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 18:33:16,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 18:33:16,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:33:16,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 18:33:16,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 18:33:16,923 INFO L87 Difference]: Start difference. First operand 62 states and 66 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) [2024-10-12 18:33:16,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:33:16,981 INFO L93 Difference]: Finished difference Result 68 states and 72 transitions. [2024-10-12 18:33:16,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 18:33:16,982 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 [2024-10-12 18:33:16,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:33:16,983 INFO L225 Difference]: With dead ends: 68 [2024-10-12 18:33:16,983 INFO L226 Difference]: Without dead ends: 66 [2024-10-12 18:33:16,983 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 [2024-10-12 18:33:16,984 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 4 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 18:33:16,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 151 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 18:33:16,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-10-12 18:33:16,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 65. [2024-10-12 18:33:16,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 50 states have (on average 1.38) internal successors, (69), 64 states have internal predecessors, (69), 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) [2024-10-12 18:33:16,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2024-10-12 18:33:16,990 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 8 [2024-10-12 18:33:16,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:33:16,990 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2024-10-12 18:33:16,990 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) [2024-10-12 18:33:16,991 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2024-10-12 18:33:16,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-12 18:33:16,991 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:33:16,991 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:33:16,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 18:33:16,992 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-10-12 18:33:16,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:33:16,992 INFO L85 PathProgramCache]: Analyzing trace with hash -644922484, now seen corresponding path program 1 times [2024-10-12 18:33:16,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:33:16,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304872113] [2024-10-12 18:33:16,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:33:16,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:33:17,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:33:17,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:33:17,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:33:17,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304872113] [2024-10-12 18:33:17,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304872113] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 18:33:17,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 18:33:17,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 18:33:17,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848508665] [2024-10-12 18:33:17,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 18:33:17,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 18:33:17,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:33:17,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 18:33:17,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 18:33:17,088 INFO L87 Difference]: Start difference. First operand 65 states and 69 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) [2024-10-12 18:33:17,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:33:17,177 INFO L93 Difference]: Finished difference Result 66 states and 70 transitions. [2024-10-12 18:33:17,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 18:33:17,178 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 [2024-10-12 18:33:17,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:33:17,178 INFO L225 Difference]: With dead ends: 66 [2024-10-12 18:33:17,179 INFO L226 Difference]: Without dead ends: 64 [2024-10-12 18:33:17,179 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 [2024-10-12 18:33:17,180 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 44 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 18:33:17,180 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 118 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 18:33:17,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-10-12 18:33:17,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 63. [2024-10-12 18:33:17,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 49 states have (on average 1.3673469387755102) internal successors, (67), 62 states have internal predecessors, (67), 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) [2024-10-12 18:33:17,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions. [2024-10-12 18:33:17,185 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 10 [2024-10-12 18:33:17,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:33:17,185 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions. [2024-10-12 18:33:17,186 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) [2024-10-12 18:33:17,186 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions. [2024-10-12 18:33:17,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-12 18:33:17,186 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:33:17,186 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:33:17,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 18:33:17,187 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-10-12 18:33:17,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:33:17,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1575617705, now seen corresponding path program 1 times [2024-10-12 18:33:17,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:33:17,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012871148] [2024-10-12 18:33:17,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:33:17,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:33:17,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:33:17,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:33:17,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:33:17,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012871148] [2024-10-12 18:33:17,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012871148] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 18:33:17,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 18:33:17,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 18:33:17,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425108963] [2024-10-12 18:33:17,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 18:33:17,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 18:33:17,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:33:17,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 18:33:17,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 18:33:17,261 INFO L87 Difference]: Start difference. First operand 63 states and 67 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) [2024-10-12 18:33:17,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:33:17,345 INFO L93 Difference]: Finished difference Result 64 states and 68 transitions. [2024-10-12 18:33:17,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 18:33:17,345 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 [2024-10-12 18:33:17,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:33:17,346 INFO L225 Difference]: With dead ends: 64 [2024-10-12 18:33:17,346 INFO L226 Difference]: Without dead ends: 62 [2024-10-12 18:33:17,346 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 [2024-10-12 18:33:17,347 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 42 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 18:33:17,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 112 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 18:33:17,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-10-12 18:33:17,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 61. [2024-10-12 18:33:17,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 48 states have (on average 1.3541666666666667) internal successors, (65), 60 states have internal predecessors, (65), 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) [2024-10-12 18:33:17,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 65 transitions. [2024-10-12 18:33:17,352 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 65 transitions. Word has length 10 [2024-10-12 18:33:17,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:33:17,352 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 65 transitions. [2024-10-12 18:33:17,353 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) [2024-10-12 18:33:17,353 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 65 transitions. [2024-10-12 18:33:17,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-12 18:33:17,353 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:33:17,353 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:33:17,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 18:33:17,354 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-10-12 18:33:17,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:33:17,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1482243665, now seen corresponding path program 1 times [2024-10-12 18:33:17,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:33:17,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529776957] [2024-10-12 18:33:17,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:33:17,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:33:17,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:33:17,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:33:17,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:33:17,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529776957] [2024-10-12 18:33:17,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529776957] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 18:33:17,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 18:33:17,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 18:33:17,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148669411] [2024-10-12 18:33:17,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 18:33:17,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 18:33:17,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:33:17,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 18:33:17,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 18:33:17,406 INFO L87 Difference]: Start difference. First operand 61 states and 65 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) [2024-10-12 18:33:17,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:33:17,450 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2024-10-12 18:33:17,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 18:33:17,451 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 [2024-10-12 18:33:17,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:33:17,451 INFO L225 Difference]: With dead ends: 62 [2024-10-12 18:33:17,451 INFO L226 Difference]: Without dead ends: 58 [2024-10-12 18:33:17,452 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 18:33:17,453 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 9 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 18:33:17,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 126 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 18:33:17,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-10-12 18:33:17,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2024-10-12 18:33:17,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 45 states have (on average 1.3555555555555556) internal successors, (61), 56 states have internal predecessors, (61), 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) [2024-10-12 18:33:17,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2024-10-12 18:33:17,457 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 11 [2024-10-12 18:33:17,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:33:17,457 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2024-10-12 18:33:17,457 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) [2024-10-12 18:33:17,457 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2024-10-12 18:33:17,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-12 18:33:17,458 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:33:17,458 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:33:17,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 18:33:17,458 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-10-12 18:33:17,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:33:17,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1482734223, now seen corresponding path program 1 times [2024-10-12 18:33:17,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:33:17,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698872690] [2024-10-12 18:33:17,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:33:17,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:33:17,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:33:17,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:33:17,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:33:17,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698872690] [2024-10-12 18:33:17,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698872690] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 18:33:17,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 18:33:17,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 18:33:17,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828749972] [2024-10-12 18:33:17,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 18:33:17,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 18:33:17,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:33:17,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 18:33:17,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 18:33:17,531 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 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) [2024-10-12 18:33:17,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:33:17,597 INFO L93 Difference]: Finished difference Result 58 states and 62 transitions. [2024-10-12 18:33:17,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 18:33:17,598 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 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 [2024-10-12 18:33:17,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:33:17,598 INFO L225 Difference]: With dead ends: 58 [2024-10-12 18:33:17,599 INFO L226 Difference]: Without dead ends: 56 [2024-10-12 18:33:17,599 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 [2024-10-12 18:33:17,599 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 38 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 18:33:17,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 98 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 18:33:17,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-10-12 18:33:17,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 55. [2024-10-12 18:33:17,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 54 states have internal predecessors, (59), 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) [2024-10-12 18:33:17,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2024-10-12 18:33:17,603 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 11 [2024-10-12 18:33:17,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:33:17,603 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2024-10-12 18:33:17,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 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) [2024-10-12 18:33:17,603 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2024-10-12 18:33:17,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-12 18:33:17,604 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:33:17,604 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:33:17,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 18:33:17,604 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-10-12 18:33:17,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:33:17,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1599504525, now seen corresponding path program 1 times [2024-10-12 18:33:17,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:33:17,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720757574] [2024-10-12 18:33:17,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:33:17,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:33:17,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:33:17,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:33:17,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:33:17,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720757574] [2024-10-12 18:33:17,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720757574] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 18:33:17,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 18:33:17,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 18:33:17,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921752056] [2024-10-12 18:33:17,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 18:33:17,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 18:33:17,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:33:17,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 18:33:17,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 18:33:17,649 INFO L87 Difference]: Start difference. First operand 55 states and 59 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) [2024-10-12 18:33:17,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:33:17,687 INFO L93 Difference]: Finished difference Result 56 states and 60 transitions. [2024-10-12 18:33:17,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 18:33:17,688 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 [2024-10-12 18:33:17,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:33:17,688 INFO L225 Difference]: With dead ends: 56 [2024-10-12 18:33:17,688 INFO L226 Difference]: Without dead ends: 52 [2024-10-12 18:33:17,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 18:33:17,689 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 9 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 18:33:17,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 112 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 18:33:17,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-10-12 18:33:17,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2024-10-12 18:33:17,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 50 states have internal predecessors, (55), 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) [2024-10-12 18:33:17,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2024-10-12 18:33:17,693 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 11 [2024-10-12 18:33:17,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:33:17,693 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2024-10-12 18:33:17,693 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) [2024-10-12 18:33:17,693 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2024-10-12 18:33:17,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-12 18:33:17,709 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:33:17,709 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:33:17,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 18:33:17,709 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-10-12 18:33:17,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:33:17,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1279875133, now seen corresponding path program 1 times [2024-10-12 18:33:17,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:33:17,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031394671] [2024-10-12 18:33:17,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:33:17,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:33:17,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:33:17,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:33:17,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:33:17,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031394671] [2024-10-12 18:33:17,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031394671] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 18:33:17,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 18:33:17,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 18:33:17,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496536461] [2024-10-12 18:33:17,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 18:33:17,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 18:33:17,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:33:17,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 18:33:17,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-12 18:33:17,863 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2024-10-12 18:33:17,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:33:17,944 INFO L93 Difference]: Finished difference Result 84 states and 92 transitions. [2024-10-12 18:33:17,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 18:33:17,944 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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 12 [2024-10-12 18:33:17,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:33:17,946 INFO L225 Difference]: With dead ends: 84 [2024-10-12 18:33:17,946 INFO L226 Difference]: Without dead ends: 82 [2024-10-12 18:33:17,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-12 18:33:17,948 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 33 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 18:33:17,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 112 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 18:33:17,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-10-12 18:33:17,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 56. [2024-10-12 18:33:17,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 46 states have (on average 1.326086956521739) internal successors, (61), 55 states have internal predecessors, (61), 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) [2024-10-12 18:33:17,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 61 transitions. [2024-10-12 18:33:17,953 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 61 transitions. Word has length 12 [2024-10-12 18:33:17,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:33:17,954 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 61 transitions. [2024-10-12 18:33:17,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2024-10-12 18:33:17,954 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 61 transitions. [2024-10-12 18:33:17,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-12 18:33:17,958 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:33:17,958 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:33:17,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 18:33:17,958 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-10-12 18:33:17,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:33:17,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1972021740, now seen corresponding path program 1 times [2024-10-12 18:33:17,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:33:17,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560334191] [2024-10-12 18:33:17,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:33:17,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:33:17,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:33:18,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:33:18,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:33:18,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560334191] [2024-10-12 18:33:18,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560334191] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 18:33:18,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 18:33:18,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 18:33:18,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675086057] [2024-10-12 18:33:18,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 18:33:18,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 18:33:18,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:33:18,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 18:33:18,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 18:33:18,028 INFO L87 Difference]: Start difference. First operand 56 states and 61 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2024-10-12 18:33:18,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:33:18,096 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2024-10-12 18:33:18,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 18:33:18,097 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 12 [2024-10-12 18:33:18,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:33:18,097 INFO L225 Difference]: With dead ends: 56 [2024-10-12 18:33:18,098 INFO L226 Difference]: Without dead ends: 54 [2024-10-12 18:33:18,098 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 [2024-10-12 18:33:18,099 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 34 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 18:33:18,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 84 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 18:33:18,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-10-12 18:33:18,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-10-12 18:33:18,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 45 states have (on average 1.3111111111111111) internal successors, (59), 53 states have internal predecessors, (59), 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) [2024-10-12 18:33:18,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2024-10-12 18:33:18,103 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 12 [2024-10-12 18:33:18,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:33:18,104 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2024-10-12 18:33:18,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2024-10-12 18:33:18,104 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2024-10-12 18:33:18,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-12 18:33:18,104 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:33:18,104 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:33:18,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-12 18:33:18,105 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-10-12 18:33:18,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:33:18,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1973745644, now seen corresponding path program 1 times [2024-10-12 18:33:18,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:33:18,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380817494] [2024-10-12 18:33:18,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:33:18,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:33:18,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:33:18,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:33:18,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:33:18,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380817494] [2024-10-12 18:33:18,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380817494] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 18:33:18,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 18:33:18,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 18:33:18,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387936] [2024-10-12 18:33:18,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 18:33:18,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 18:33:18,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:33:18,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 18:33:18,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 18:33:18,158 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2024-10-12 18:33:18,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:33:18,220 INFO L93 Difference]: Finished difference Result 54 states and 59 transitions. [2024-10-12 18:33:18,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 18:33:18,221 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 12 [2024-10-12 18:33:18,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:33:18,221 INFO L225 Difference]: With dead ends: 54 [2024-10-12 18:33:18,222 INFO L226 Difference]: Without dead ends: 52 [2024-10-12 18:33:18,222 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 [2024-10-12 18:33:18,222 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 32 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 18:33:18,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 78 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 18:33:18,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-10-12 18:33:18,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-10-12 18:33:18,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.2954545454545454) internal successors, (57), 51 states have internal predecessors, (57), 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) [2024-10-12 18:33:18,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2024-10-12 18:33:18,226 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 12 [2024-10-12 18:33:18,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:33:18,226 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 57 transitions. [2024-10-12 18:33:18,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2024-10-12 18:33:18,227 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2024-10-12 18:33:18,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-12 18:33:18,227 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:33:18,227 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:33:18,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-12 18:33:18,228 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-10-12 18:33:18,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:33:18,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1028222508, now seen corresponding path program 1 times [2024-10-12 18:33:18,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:33:18,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409641863] [2024-10-12 18:33:18,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:33:18,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:33:18,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:33:18,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:33:18,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:33:18,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409641863] [2024-10-12 18:33:18,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409641863] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 18:33:18,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 18:33:18,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 18:33:18,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846557690] [2024-10-12 18:33:18,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 18:33:18,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 18:33:18,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:33:18,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 18:33:18,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-12 18:33:18,332 INFO L87 Difference]: Start difference. First operand 52 states and 57 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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) [2024-10-12 18:33:18,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:33:18,416 INFO L93 Difference]: Finished difference Result 74 states and 82 transitions. [2024-10-12 18:33:18,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 18:33:18,417 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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 13 [2024-10-12 18:33:18,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:33:18,417 INFO L225 Difference]: With dead ends: 74 [2024-10-12 18:33:18,417 INFO L226 Difference]: Without dead ends: 72 [2024-10-12 18:33:18,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-12 18:33:18,418 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 28 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 18:33:18,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 99 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 18:33:18,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-10-12 18:33:18,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 52. [2024-10-12 18:33:18,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.2954545454545454) internal successors, (57), 51 states have internal predecessors, (57), 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) [2024-10-12 18:33:18,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2024-10-12 18:33:18,421 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 13 [2024-10-12 18:33:18,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:33:18,421 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 57 transitions. [2024-10-12 18:33:18,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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) [2024-10-12 18:33:18,422 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2024-10-12 18:33:18,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-12 18:33:18,422 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:33:18,422 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:33:18,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-12 18:33:18,423 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-10-12 18:33:18,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:33:18,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1003135894, now seen corresponding path program 1 times [2024-10-12 18:33:18,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:33:18,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202135643] [2024-10-12 18:33:18,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:33:18,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:33:18,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:33:18,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:33:18,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:33:18,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202135643] [2024-10-12 18:33:18,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202135643] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 18:33:18,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 18:33:18,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 18:33:18,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292867202] [2024-10-12 18:33:18,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 18:33:18,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 18:33:18,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:33:18,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 18:33:18,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-12 18:33:18,543 INFO L87 Difference]: Start difference. First operand 52 states and 57 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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) [2024-10-12 18:33:18,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:33:18,630 INFO L93 Difference]: Finished difference Result 72 states and 80 transitions. [2024-10-12 18:33:18,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 18:33:18,630 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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 13 [2024-10-12 18:33:18,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:33:18,631 INFO L225 Difference]: With dead ends: 72 [2024-10-12 18:33:18,631 INFO L226 Difference]: Without dead ends: 70 [2024-10-12 18:33:18,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-12 18:33:18,632 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 27 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 18:33:18,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 99 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 18:33:18,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-10-12 18:33:18,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 60. [2024-10-12 18:33:18,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 52 states have (on average 1.2884615384615385) internal successors, (67), 59 states have internal predecessors, (67), 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) [2024-10-12 18:33:18,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions. [2024-10-12 18:33:18,635 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 67 transitions. Word has length 13 [2024-10-12 18:33:18,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:33:18,635 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 67 transitions. [2024-10-12 18:33:18,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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) [2024-10-12 18:33:18,635 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 67 transitions. [2024-10-12 18:33:18,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-12 18:33:18,636 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:33:18,636 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:33:18,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-12 18:33:18,637 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-10-12 18:33:18,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:33:18,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1004683039, now seen corresponding path program 1 times [2024-10-12 18:33:18,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:33:18,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567042393] [2024-10-12 18:33:18,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:33:18,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:33:18,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:33:18,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:33:18,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:33:18,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567042393] [2024-10-12 18:33:18,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567042393] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 18:33:18,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 18:33:18,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 18:33:18,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133535786] [2024-10-12 18:33:18,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 18:33:18,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 18:33:18,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:33:18,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 18:33:18,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 18:33:18,682 INFO L87 Difference]: Start difference. First operand 60 states and 67 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2024-10-12 18:33:18,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:33:18,750 INFO L93 Difference]: Finished difference Result 60 states and 67 transitions. [2024-10-12 18:33:18,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 18:33:18,750 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 13 [2024-10-12 18:33:18,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:33:18,751 INFO L225 Difference]: With dead ends: 60 [2024-10-12 18:33:18,751 INFO L226 Difference]: Without dead ends: 58 [2024-10-12 18:33:18,751 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 [2024-10-12 18:33:18,751 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 29 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 18:33:18,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 72 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 18:33:18,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-10-12 18:33:18,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-10-12 18:33:18,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 51 states have (on average 1.2745098039215685) internal successors, (65), 57 states have internal predecessors, (65), 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) [2024-10-12 18:33:18,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 65 transitions. [2024-10-12 18:33:18,758 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 65 transitions. Word has length 13 [2024-10-12 18:33:18,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:33:18,758 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 65 transitions. [2024-10-12 18:33:18,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2024-10-12 18:33:18,759 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2024-10-12 18:33:18,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-12 18:33:18,759 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:33:18,759 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:33:18,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-12 18:33:18,759 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-10-12 18:33:18,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:33:18,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1056576974, now seen corresponding path program 1 times [2024-10-12 18:33:18,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:33:18,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480192972] [2024-10-12 18:33:18,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:33:18,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:33:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:33:18,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:33:18,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:33:18,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480192972] [2024-10-12 18:33:18,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480192972] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 18:33:18,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 18:33:18,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 18:33:18,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263120324] [2024-10-12 18:33:18,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 18:33:18,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 18:33:18,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:33:18,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 18:33:18,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-12 18:33:18,897 INFO L87 Difference]: Start difference. First operand 58 states and 65 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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) [2024-10-12 18:33:18,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:33:18,964 INFO L93 Difference]: Finished difference Result 69 states and 76 transitions. [2024-10-12 18:33:18,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 18:33:18,964 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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 13 [2024-10-12 18:33:18,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:33:18,965 INFO L225 Difference]: With dead ends: 69 [2024-10-12 18:33:18,965 INFO L226 Difference]: Without dead ends: 65 [2024-10-12 18:33:18,967 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-12 18:33:18,967 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 25 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 18:33:18,967 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 91 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 18:33:18,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-10-12 18:33:18,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 59. [2024-10-12 18:33:18,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 52 states have (on average 1.2692307692307692) internal successors, (66), 58 states have internal predecessors, (66), 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) [2024-10-12 18:33:18,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 66 transitions. [2024-10-12 18:33:18,970 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 66 transitions. Word has length 13 [2024-10-12 18:33:18,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:33:18,970 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 66 transitions. [2024-10-12 18:33:18,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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) [2024-10-12 18:33:18,971 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 66 transitions. [2024-10-12 18:33:18,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-12 18:33:18,971 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:33:18,971 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:33:18,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-12 18:33:18,972 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-10-12 18:33:18,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:33:18,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1080407270, now seen corresponding path program 1 times [2024-10-12 18:33:18,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:33:18,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160730792] [2024-10-12 18:33:18,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:33:18,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:33:18,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:33:19,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:33:19,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:33:19,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160730792] [2024-10-12 18:33:19,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160730792] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 18:33:19,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 18:33:19,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 18:33:19,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589269015] [2024-10-12 18:33:19,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 18:33:19,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 18:33:19,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:33:19,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 18:33:19,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-12 18:33:19,072 INFO L87 Difference]: Start difference. First operand 59 states and 66 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 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) [2024-10-12 18:33:19,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:33:19,146 INFO L93 Difference]: Finished difference Result 65 states and 72 transitions. [2024-10-12 18:33:19,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 18:33:19,147 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 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 [2024-10-12 18:33:19,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:33:19,148 INFO L225 Difference]: With dead ends: 65 [2024-10-12 18:33:19,148 INFO L226 Difference]: Without dead ends: 63 [2024-10-12 18:33:19,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-12 18:33:19,148 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 18 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 18:33:19,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 101 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 18:33:19,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-10-12 18:33:19,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 62. [2024-10-12 18:33:19,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 55 states have (on average 1.2545454545454546) internal successors, (69), 61 states have internal predecessors, (69), 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) [2024-10-12 18:33:19,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 69 transitions. [2024-10-12 18:33:19,151 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 69 transitions. Word has length 14 [2024-10-12 18:33:19,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:33:19,151 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 69 transitions. [2024-10-12 18:33:19,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 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) [2024-10-12 18:33:19,151 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 69 transitions. [2024-10-12 18:33:19,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-12 18:33:19,152 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:33:19,152 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:33:19,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-12 18:33:19,153 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-10-12 18:33:19,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:33:19,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1941047225, now seen corresponding path program 1 times [2024-10-12 18:33:19,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:33:19,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567182209] [2024-10-12 18:33:19,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:33:19,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:33:19,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:33:19,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:33:19,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:33:19,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567182209] [2024-10-12 18:33:19,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567182209] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 18:33:19,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 18:33:19,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 18:33:19,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633029786] [2024-10-12 18:33:19,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 18:33:19,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 18:33:19,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:33:19,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 18:33:19,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 18:33:19,200 INFO L87 Difference]: Start difference. First operand 62 states and 69 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-10-12 18:33:19,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:33:19,224 INFO L93 Difference]: Finished difference Result 62 states and 69 transitions. [2024-10-12 18:33:19,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 18:33:19,225 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2024-10-12 18:33:19,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:33:19,225 INFO L225 Difference]: With dead ends: 62 [2024-10-12 18:33:19,225 INFO L226 Difference]: Without dead ends: 60 [2024-10-12 18:33:19,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 18:33:19,226 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 26 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 18:33:19,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 66 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 18:33:19,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-10-12 18:33:19,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-10-12 18:33:19,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 54 states have (on average 1.2407407407407407) internal successors, (67), 59 states have internal predecessors, (67), 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) [2024-10-12 18:33:19,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions. [2024-10-12 18:33:19,229 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 67 transitions. Word has length 15 [2024-10-12 18:33:19,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:33:19,229 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 67 transitions. [2024-10-12 18:33:19,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-10-12 18:33:19,229 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 67 transitions. [2024-10-12 18:33:19,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-12 18:33:19,230 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:33:19,230 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:33:19,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-12 18:33:19,230 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-10-12 18:33:19,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:33:19,230 INFO L85 PathProgramCache]: Analyzing trace with hash 42925946, now seen corresponding path program 1 times [2024-10-12 18:33:19,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:33:19,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919719423] [2024-10-12 18:33:19,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:33:19,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:33:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:33:19,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:33:19,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:33:19,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919719423] [2024-10-12 18:33:19,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919719423] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 18:33:19,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 18:33:19,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 18:33:19,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270013212] [2024-10-12 18:33:19,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 18:33:19,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 18:33:19,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:33:19,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 18:33:19,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 18:33:19,272 INFO L87 Difference]: Start difference. First operand 60 states and 67 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 18:33:19,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:33:19,302 INFO L93 Difference]: Finished difference Result 60 states and 67 transitions. [2024-10-12 18:33:19,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 18:33:19,302 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-10-12 18:33:19,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:33:19,303 INFO L225 Difference]: With dead ends: 60 [2024-10-12 18:33:19,303 INFO L226 Difference]: Without dead ends: 56 [2024-10-12 18:33:19,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 18:33:19,304 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 7 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 18:33:19,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 82 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 18:33:19,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-10-12 18:33:19,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-10-12 18:33:19,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 51 states have (on average 1.2352941176470589) internal successors, (63), 55 states have internal predecessors, (63), 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) [2024-10-12 18:33:19,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2024-10-12 18:33:19,306 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 63 transitions. Word has length 16 [2024-10-12 18:33:19,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:33:19,308 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 63 transitions. [2024-10-12 18:33:19,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 18:33:19,308 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 63 transitions. [2024-10-12 18:33:19,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-12 18:33:19,309 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:33:19,309 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:33:19,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-12 18:33:19,309 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-10-12 18:33:19,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:33:19,310 INFO L85 PathProgramCache]: Analyzing trace with hash 357602768, now seen corresponding path program 1 times [2024-10-12 18:33:19,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:33:19,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470468369] [2024-10-12 18:33:19,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:33:19,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:33:19,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:33:19,456 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:33:19,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:33:19,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470468369] [2024-10-12 18:33:19,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470468369] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 18:33:19,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760758628] [2024-10-12 18:33:19,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:33:19,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 18:33:19,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 18:33:19,460 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 18:33:19,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-12 18:33:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:33:19,539 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-12 18:33:19,547 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 18:33:19,799 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:33:19,799 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 18:33:19,894 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 18:33:19,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760758628] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 18:33:19,895 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 18:33:19,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 8] total 17 [2024-10-12 18:33:19,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630809857] [2024-10-12 18:33:19,895 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 18:33:19,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-12 18:33:19,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:33:19,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-12 18:33:19,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-10-12 18:33:19,897 INFO L87 Difference]: Start difference. First operand 56 states and 63 transitions. Second operand has 17 states, 17 states have (on average 2.411764705882353) internal successors, (41), 17 states have internal predecessors, (41), 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) [2024-10-12 18:33:20,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:33:20,077 INFO L93 Difference]: Finished difference Result 82 states and 94 transitions. [2024-10-12 18:33:20,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 18:33:20,078 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.411764705882353) internal successors, (41), 17 states have internal predecessors, (41), 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 [2024-10-12 18:33:20,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:33:20,079 INFO L225 Difference]: With dead ends: 82 [2024-10-12 18:33:20,079 INFO L226 Difference]: Without dead ends: 80 [2024-10-12 18:33:20,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 20 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=285, Unknown=0, NotChecked=0, Total=420 [2024-10-12 18:33:20,080 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 218 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 18:33:20,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 106 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 18:33:20,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-10-12 18:33:20,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 52. [2024-10-12 18:33:20,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 48 states have (on average 1.2291666666666667) internal successors, (59), 51 states have internal predecessors, (59), 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) [2024-10-12 18:33:20,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2024-10-12 18:33:20,082 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 59 transitions. Word has length 17 [2024-10-12 18:33:20,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:33:20,083 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 59 transitions. [2024-10-12 18:33:20,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.411764705882353) internal successors, (41), 17 states have internal predecessors, (41), 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) [2024-10-12 18:33:20,083 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2024-10-12 18:33:20,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-12 18:33:20,084 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:33:20,084 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:33:20,102 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-12 18:33:20,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 18:33:20,288 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-10-12 18:33:20,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:33:20,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1345823408, now seen corresponding path program 1 times [2024-10-12 18:33:20,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:33:20,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068498010] [2024-10-12 18:33:20,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:33:20,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:33:20,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:33:20,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:33:20,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:33:20,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068498010] [2024-10-12 18:33:20,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068498010] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 18:33:20,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 18:33:20,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 18:33:20,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534450308] [2024-10-12 18:33:20,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 18:33:20,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 18:33:20,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:33:20,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 18:33:20,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 18:33:20,371 INFO L87 Difference]: Start difference. First operand 52 states and 59 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2024-10-12 18:33:20,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:33:20,427 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2024-10-12 18:33:20,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 18:33:20,428 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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 [2024-10-12 18:33:20,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:33:20,428 INFO L225 Difference]: With dead ends: 52 [2024-10-12 18:33:20,428 INFO L226 Difference]: Without dead ends: 50 [2024-10-12 18:33:20,429 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-12 18:33:20,429 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 47 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 18:33:20,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 36 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 18:33:20,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-10-12 18:33:20,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 47. [2024-10-12 18:33:20,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 44 states have (on average 1.2272727272727273) internal successors, (54), 46 states have internal predecessors, (54), 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) [2024-10-12 18:33:20,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 54 transitions. [2024-10-12 18:33:20,431 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 54 transitions. Word has length 17 [2024-10-12 18:33:20,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:33:20,431 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 54 transitions. [2024-10-12 18:33:20,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2024-10-12 18:33:20,432 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 54 transitions. [2024-10-12 18:33:20,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-12 18:33:20,434 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:33:20,434 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:33:20,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-12 18:33:20,435 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-10-12 18:33:20,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:33:20,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1490378293, now seen corresponding path program 1 times [2024-10-12 18:33:20,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:33:20,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688740359] [2024-10-12 18:33:20,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:33:20,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:33:20,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:33:20,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:33:20,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:33:20,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688740359] [2024-10-12 18:33:20,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688740359] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 18:33:20,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 18:33:20,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 18:33:20,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744682269] [2024-10-12 18:33:20,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 18:33:20,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 18:33:20,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:33:20,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 18:33:20,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 18:33:20,548 INFO L87 Difference]: Start difference. First operand 47 states and 54 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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) [2024-10-12 18:33:20,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:33:20,599 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions. [2024-10-12 18:33:20,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 18:33:20,599 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-10-12 18:33:20,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:33:20,599 INFO L225 Difference]: With dead ends: 47 [2024-10-12 18:33:20,599 INFO L226 Difference]: Without dead ends: 45 [2024-10-12 18:33:20,600 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-12 18:33:20,600 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 60 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 18:33:20,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 30 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 18:33:20,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-10-12 18:33:20,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2024-10-12 18:33:20,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 40 states have (on average 1.2) internal successors, (48), 41 states have internal predecessors, (48), 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) [2024-10-12 18:33:20,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2024-10-12 18:33:20,602 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 18 [2024-10-12 18:33:20,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:33:20,602 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2024-10-12 18:33:20,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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) [2024-10-12 18:33:20,603 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2024-10-12 18:33:20,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-12 18:33:20,603 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:33:20,603 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:33:20,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-12 18:33:20,604 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-10-12 18:33:20,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:33:20,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1543819373, now seen corresponding path program 1 times [2024-10-12 18:33:20,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:33:20,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109782691] [2024-10-12 18:33:20,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:33:20,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:33:20,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:33:20,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:33:20,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:33:20,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109782691] [2024-10-12 18:33:20,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109782691] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 18:33:20,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 18:33:20,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 18:33:20,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71037543] [2024-10-12 18:33:20,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 18:33:20,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 18:33:20,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:33:20,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 18:33:20,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 18:33:20,708 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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) [2024-10-12 18:33:20,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:33:20,753 INFO L93 Difference]: Finished difference Result 42 states and 48 transitions. [2024-10-12 18:33:20,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 18:33:20,754 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-10-12 18:33:20,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:33:20,754 INFO L225 Difference]: With dead ends: 42 [2024-10-12 18:33:20,754 INFO L226 Difference]: Without dead ends: 19 [2024-10-12 18:33:20,754 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-12 18:33:20,755 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 60 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 18:33:20,755 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 22 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 18:33:20,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-10-12 18:33:20,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-10-12 18:33:20,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 18 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 18:33:20,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2024-10-12 18:33:20,757 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 18 [2024-10-12 18:33:20,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:33:20,757 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2024-10-12 18:33:20,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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) [2024-10-12 18:33:20,757 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2024-10-12 18:33:20,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-12 18:33:20,757 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 18:33:20,758 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:33:20,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-12 18:33:20,758 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2024-10-12 18:33:20,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 18:33:20,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1806015129, now seen corresponding path program 1 times [2024-10-12 18:33:20,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 18:33:20,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502961202] [2024-10-12 18:33:20,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:33:20,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 18:33:20,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:33:20,844 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:33:20,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 18:33:20,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502961202] [2024-10-12 18:33:20,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502961202] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 18:33:20,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280936359] [2024-10-12 18:33:20,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 18:33:20,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 18:33:20,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 18:33:20,847 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 18:33:20,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-12 18:33:20,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 18:33:20,909 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-12 18:33:20,911 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 18:33:21,088 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 18:33:21,088 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 18:33:21,182 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 18:33:21,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1280936359] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 18:33:21,182 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 18:33:21,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 8] total 17 [2024-10-12 18:33:21,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214452144] [2024-10-12 18:33:21,183 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 18:33:21,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-12 18:33:21,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 18:33:21,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-12 18:33:21,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-10-12 18:33:21,184 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 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) [2024-10-12 18:33:21,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 18:33:21,266 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2024-10-12 18:33:21,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-12 18:33:21,266 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 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 18 [2024-10-12 18:33:21,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 18:33:21,267 INFO L225 Difference]: With dead ends: 30 [2024-10-12 18:33:21,267 INFO L226 Difference]: Without dead ends: 0 [2024-10-12 18:33:21,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 22 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2024-10-12 18:33:21,268 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 10 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 18:33:21,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 23 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 18:33:21,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-12 18:33:21,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-12 18:33:21,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2024-10-12 18:33:21,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-12 18:33:21,268 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2024-10-12 18:33:21,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 18:33:21,269 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 18:33:21,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 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) [2024-10-12 18:33:21,269 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-12 18:33:21,269 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-12 18:33:21,272 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 17 remaining) [2024-10-12 18:33:21,273 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (15 of 17 remaining) [2024-10-12 18:33:21,273 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (14 of 17 remaining) [2024-10-12 18:33:21,273 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (13 of 17 remaining) [2024-10-12 18:33:21,273 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (12 of 17 remaining) [2024-10-12 18:33:21,274 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (11 of 17 remaining) [2024-10-12 18:33:21,274 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (10 of 17 remaining) [2024-10-12 18:33:21,274 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (9 of 17 remaining) [2024-10-12 18:33:21,274 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (8 of 17 remaining) [2024-10-12 18:33:21,274 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (7 of 17 remaining) [2024-10-12 18:33:21,274 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (6 of 17 remaining) [2024-10-12 18:33:21,274 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (5 of 17 remaining) [2024-10-12 18:33:21,275 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (4 of 17 remaining) [2024-10-12 18:33:21,275 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION (3 of 17 remaining) [2024-10-12 18:33:21,275 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (2 of 17 remaining) [2024-10-12 18:33:21,276 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION (1 of 17 remaining) [2024-10-12 18:33:21,276 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION (0 of 17 remaining) [2024-10-12 18:33:21,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-12 18:33:21,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-10-12 18:33:21,479 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 18:33:21,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-12 18:33:21,488 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 18:33:21,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 06:33:21 BoogieIcfgContainer [2024-10-12 18:33:21,494 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 18:33:21,495 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 18:33:21,495 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 18:33:21,495 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 18:33:21,495 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:33:15" (3/4) ... [2024-10-12 18:33:21,497 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-12 18:33:21,505 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-10-12 18:33:21,505 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-12 18:33:21,505 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-12 18:33:21,506 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-12 18:33:21,597 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-12 18:33:21,598 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-12 18:33:21,598 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 18:33:21,598 INFO L158 Benchmark]: Toolchain (without parser) took 6638.51ms. Allocated memory was 151.0MB in the beginning and 230.7MB in the end (delta: 79.7MB). Free memory was 79.9MB in the beginning and 95.4MB in the end (delta: -15.5MB). Peak memory consumption was 65.5MB. Max. memory is 16.1GB. [2024-10-12 18:33:21,598 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 151.0MB. Free memory is still 101.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 18:33:21,599 INFO L158 Benchmark]: CACSL2BoogieTranslator took 295.74ms. Allocated memory is still 151.0MB. Free memory was 79.7MB in the beginning and 61.0MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-12 18:33:21,599 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.48ms. Allocated memory is still 151.0MB. Free memory was 60.8MB in the beginning and 58.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 18:33:21,599 INFO L158 Benchmark]: Boogie Preprocessor took 62.48ms. Allocated memory is still 151.0MB. Free memory was 58.7MB in the beginning and 119.2MB in the end (delta: -60.5MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2024-10-12 18:33:21,599 INFO L158 Benchmark]: RCFGBuilder took 541.21ms. Allocated memory was 151.0MB in the beginning and 190.8MB in the end (delta: 39.8MB). Free memory was 119.1MB in the beginning and 142.7MB in the end (delta: -23.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-12 18:33:21,600 INFO L158 Benchmark]: TraceAbstraction took 5591.63ms. Allocated memory was 190.8MB in the beginning and 230.7MB in the end (delta: 39.8MB). Free memory was 142.7MB in the beginning and 102.2MB in the end (delta: 40.5MB). Peak memory consumption was 79.8MB. Max. memory is 16.1GB. [2024-10-12 18:33:21,600 INFO L158 Benchmark]: Witness Printer took 102.99ms. Allocated memory is still 230.7MB. Free memory was 102.2MB in the beginning and 95.4MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-12 18:33:21,601 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 151.0MB. Free memory is still 101.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 295.74ms. Allocated memory is still 151.0MB. Free memory was 79.7MB in the beginning and 61.0MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.48ms. Allocated memory is still 151.0MB. Free memory was 60.8MB in the beginning and 58.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.48ms. Allocated memory is still 151.0MB. Free memory was 58.7MB in the beginning and 119.2MB in the end (delta: -60.5MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * RCFGBuilder took 541.21ms. Allocated memory was 151.0MB in the beginning and 190.8MB in the end (delta: 39.8MB). Free memory was 119.1MB in the beginning and 142.7MB in the end (delta: -23.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 5591.63ms. Allocated memory was 190.8MB in the beginning and 230.7MB in the end (delta: 39.8MB). Free memory was 142.7MB in the beginning and 102.2MB in the end (delta: 40.5MB). Peak memory consumption was 79.8MB. Max. memory is 16.1GB. * Witness Printer took 102.99ms. Allocated memory is still 230.7MB. Free memory was 102.2MB in the beginning and 95.4MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 44]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 56]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 73]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 85]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 115]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 127]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 143]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 155]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 177]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 189]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 225]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 237]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 279]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 298]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 310]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 339]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 351]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 69 locations, 17 error locations. Started 1 CEGAR loops. OverallTime: 5.5s, OverallIterations: 23, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 856 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 856 mSDsluCounter, 2079 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1381 mSDsCounter, 106 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1659 IncrementalHoareTripleChecker+Invalid, 1765 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 106 mSolverCounterUnsat, 698 mSDtfsCounter, 1659 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 220 GetRequests, 91 SyntacticMatches, 8 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=0, InterpolantAutomatonStates: 131, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 23 MinimizatonAttempts, 111 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 331 NumberOfCodeBlocks, 331 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 339 ConstructedInterpolants, 0 QuantifiedInterpolants, 1489 SizeOfPredicates, 6 NumberOfNonLiveVariables, 201 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 27 InterpolantComputations, 21 PerfectInterpolantSequences, 8/24 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 17 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-12 18:33:21,632 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE