./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/forester-heap/sll-queue-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 26d01a9c Calling Ultimate with: /usr/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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/forester-heap/sll-queue-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a9a441ad5f70efa202eb02609b90cbc83f5bf4487618c2a09bffcfe320d65f90 --- Real Ultimate output --- This is Ultimate 0.2.2-?-26d01a9 [2023-02-18 06:22:12,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 06:22:12,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 06:22:12,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 06:22:12,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 06:22:12,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 06:22:12,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 06:22:12,462 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 06:22:12,466 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 06:22:12,470 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 06:22:12,471 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 06:22:12,472 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 06:22:12,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 06:22:12,474 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 06:22:12,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 06:22:12,476 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 06:22:12,476 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 06:22:12,477 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 06:22:12,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 06:22:12,479 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 06:22:12,480 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 06:22:12,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 06:22:12,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 06:22:12,482 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 06:22:12,488 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 06:22:12,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 06:22:12,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 06:22:12,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 06:22:12,490 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 06:22:12,491 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 06:22:12,492 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 06:22:12,492 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 06:22:12,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 06:22:12,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 06:22:12,494 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 06:22:12,495 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 06:22:12,495 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 06:22:12,496 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 06:22:12,496 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 06:22:12,497 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 06:22:12,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 06:22:12,498 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-02-18 06:22:12,518 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 06:22:12,524 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 06:22:12,525 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 06:22:12,525 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 06:22:12,526 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 06:22:12,526 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 06:22:12,527 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 06:22:12,527 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 06:22:12,527 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 06:22:12,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 06:22:12,528 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 06:22:12,528 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 06:22:12,528 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 06:22:12,528 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 06:22:12,528 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 06:22:12,529 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-18 06:22:12,529 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-18 06:22:12,529 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-18 06:22:12,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 06:22:12,529 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-18 06:22:12,529 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 06:22:12,529 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 06:22:12,530 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 06:22:12,530 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 06:22:12,530 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 06:22:12,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 06:22:12,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 06:22:12,531 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 06:22:12,531 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 06:22:12,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 06:22:12,531 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 06:22:12,532 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 06:22:12,532 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 06:22:12,532 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 06:22:12,532 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9a441ad5f70efa202eb02609b90cbc83f5bf4487618c2a09bffcfe320d65f90 [2023-02-18 06:22:12,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 06:22:12,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 06:22:12,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 06:22:12,773 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 06:22:12,773 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 06:22:12,774 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/sll-queue-1.i [2023-02-18 06:22:13,802 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 06:22:13,988 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 06:22:13,991 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-queue-1.i [2023-02-18 06:22:14,001 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f74641c3/0d178a78182f4649891affaa72cfb2f6/FLAGe13835d1d [2023-02-18 06:22:14,011 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f74641c3/0d178a78182f4649891affaa72cfb2f6 [2023-02-18 06:22:14,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 06:22:14,014 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 06:22:14,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 06:22:14,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 06:22:14,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 06:22:14,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 06:22:14" (1/1) ... [2023-02-18 06:22:14,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12bc5441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 06:22:14, skipping insertion in model container [2023-02-18 06:22:14,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 06:22:14" (1/1) ... [2023-02-18 06:22:14,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 06:22:14,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 06:22:14,193 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-queue-1.i[22387,22400] [2023-02-18 06:22:14,206 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-queue-1.i[22458,22471] [2023-02-18 06:22:14,207 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-queue-1.i[22532,22545] [2023-02-18 06:22:14,208 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-queue-1.i[22624,22637] [2023-02-18 06:22:14,208 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-queue-1.i[22701,22714] [2023-02-18 06:22:14,209 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-queue-1.i[22796,22809] [2023-02-18 06:22:14,209 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-queue-1.i[22873,22886] [2023-02-18 06:22:14,210 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-queue-1.i[22956,22969] [2023-02-18 06:22:14,211 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-queue-1.i[23051,23064] [2023-02-18 06:22:14,211 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-queue-1.i[23128,23141] [2023-02-18 06:22:14,212 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-queue-1.i[23211,23224] [2023-02-18 06:22:14,213 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-queue-1.i[23300,23313] [2023-02-18 06:22:14,215 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-queue-1.i[23386,23399] [2023-02-18 06:22:14,217 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-queue-1.i[23532,23545] [2023-02-18 06:22:14,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 06:22:14,232 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 06:22:14,267 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-queue-1.i[22387,22400] [2023-02-18 06:22:14,277 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-queue-1.i[22458,22471] [2023-02-18 06:22:14,281 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-queue-1.i[22532,22545] [2023-02-18 06:22:14,282 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-queue-1.i[22624,22637] [2023-02-18 06:22:14,282 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-queue-1.i[22701,22714] [2023-02-18 06:22:14,283 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-queue-1.i[22796,22809] [2023-02-18 06:22:14,283 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-queue-1.i[22873,22886] [2023-02-18 06:22:14,284 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-queue-1.i[22956,22969] [2023-02-18 06:22:14,286 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-queue-1.i[23051,23064] [2023-02-18 06:22:14,287 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-queue-1.i[23128,23141] [2023-02-18 06:22:14,288 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-queue-1.i[23211,23224] [2023-02-18 06:22:14,289 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-queue-1.i[23300,23313] [2023-02-18 06:22:14,290 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-queue-1.i[23386,23399] [2023-02-18 06:22:14,290 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-queue-1.i[23532,23545] [2023-02-18 06:22:14,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 06:22:14,310 INFO L208 MainTranslator]: Completed translation [2023-02-18 06:22:14,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 06:22:14 WrapperNode [2023-02-18 06:22:14,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 06:22:14,311 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 06:22:14,312 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 06:22:14,312 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 06:22:14,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 06:22:14" (1/1) ... [2023-02-18 06:22:14,341 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 06:22:14" (1/1) ... [2023-02-18 06:22:14,371 INFO L138 Inliner]: procedures = 119, calls = 35, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 222 [2023-02-18 06:22:14,372 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 06:22:14,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 06:22:14,373 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 06:22:14,373 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 06:22:14,379 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 06:22:14" (1/1) ... [2023-02-18 06:22:14,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 06:22:14" (1/1) ... [2023-02-18 06:22:14,388 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 06:22:14" (1/1) ... [2023-02-18 06:22:14,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 06:22:14" (1/1) ... [2023-02-18 06:22:14,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 06:22:14" (1/1) ... [2023-02-18 06:22:14,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 06:22:14" (1/1) ... [2023-02-18 06:22:14,404 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 06:22:14" (1/1) ... [2023-02-18 06:22:14,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 06:22:14" (1/1) ... [2023-02-18 06:22:14,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 06:22:14,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 06:22:14,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 06:22:14,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 06:22:14,412 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 06:22:14" (1/1) ... [2023-02-18 06:22:14,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 06:22:14,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 06:22:14,459 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-18 06:22:14,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-18 06:22:14,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-18 06:22:14,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-18 06:22:14,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-18 06:22:14,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 06:22:14,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-02-18 06:22:14,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-02-18 06:22:14,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-18 06:22:14,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-18 06:22:14,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 06:22:14,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 06:22:14,577 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 06:22:14,579 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 06:22:14,896 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 06:22:14,901 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 06:22:14,902 INFO L300 CfgBuilder]: Removed 31 assume(true) statements. [2023-02-18 06:22:14,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 06:22:14 BoogieIcfgContainer [2023-02-18 06:22:14,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 06:22:14,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 06:22:14,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 06:22:14,907 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 06:22:14,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 06:22:14" (1/3) ... [2023-02-18 06:22:14,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e60809d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 06:22:14, skipping insertion in model container [2023-02-18 06:22:14,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 06:22:14" (2/3) ... [2023-02-18 06:22:14,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e60809d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 06:22:14, skipping insertion in model container [2023-02-18 06:22:14,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 06:22:14" (3/3) ... [2023-02-18 06:22:14,909 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-queue-1.i [2023-02-18 06:22:14,922 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 06:22:14,923 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 70 error locations. [2023-02-18 06:22:14,966 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 06:22:14,971 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@18bcc2c1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 06:22:14,971 INFO L358 AbstractCegarLoop]: Starting to check reachability of 70 error locations. [2023-02-18 06:22:14,982 INFO L276 IsEmpty]: Start isEmpty. Operand has 171 states, 100 states have (on average 2.26) internal successors, (226), 170 states have internal predecessors, (226), 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) [2023-02-18 06:22:14,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-02-18 06:22:14,986 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 06:22:14,986 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-02-18 06:22:14,987 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-02-18 06:22:14,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 06:22:14,990 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2023-02-18 06:22:14,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 06:22:14,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52574400] [2023-02-18 06:22:14,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:14,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 06:22:15,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:15,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:15,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 06:22:15,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52574400] [2023-02-18 06:22:15,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52574400] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 06:22:15,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 06:22:15,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 06:22:15,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693383447] [2023-02-18 06:22:15,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 06:22:15,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 06:22:15,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 06:22:15,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 06:22:15,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 06:22:15,182 INFO L87 Difference]: Start difference. First operand has 171 states, 100 states have (on average 2.26) internal successors, (226), 170 states have internal predecessors, (226), 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 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-02-18 06:22:15,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 06:22:15,314 INFO L93 Difference]: Finished difference Result 169 states and 179 transitions. [2023-02-18 06:22:15,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 06:22:15,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2023-02-18 06:22:15,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 06:22:15,334 INFO L225 Difference]: With dead ends: 169 [2023-02-18 06:22:15,334 INFO L226 Difference]: Without dead ends: 165 [2023-02-18 06:22:15,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 06:22:15,339 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 160 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 06:22:15,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 109 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 06:22:15,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-02-18 06:22:15,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 161. [2023-02-18 06:22:15,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 101 states have (on average 1.7128712871287128) internal successors, (173), 160 states have internal predecessors, (173), 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) [2023-02-18 06:22:15,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 173 transitions. [2023-02-18 06:22:15,379 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 173 transitions. Word has length 3 [2023-02-18 06:22:15,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 06:22:15,380 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 173 transitions. [2023-02-18 06:22:15,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-02-18 06:22:15,381 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 173 transitions. [2023-02-18 06:22:15,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-02-18 06:22:15,381 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 06:22:15,381 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-02-18 06:22:15,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 06:22:15,382 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-02-18 06:22:15,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 06:22:15,382 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2023-02-18 06:22:15,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 06:22:15,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307561348] [2023-02-18 06:22:15,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:15,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 06:22:15,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:15,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:15,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 06:22:15,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307561348] [2023-02-18 06:22:15,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307561348] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 06:22:15,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 06:22:15,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 06:22:15,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983347712] [2023-02-18 06:22:15,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 06:22:15,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 06:22:15,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 06:22:15,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 06:22:15,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 06:22:15,462 INFO L87 Difference]: Start difference. First operand 161 states and 173 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-02-18 06:22:15,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 06:22:15,559 INFO L93 Difference]: Finished difference Result 155 states and 165 transitions. [2023-02-18 06:22:15,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 06:22:15,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2023-02-18 06:22:15,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 06:22:15,562 INFO L225 Difference]: With dead ends: 155 [2023-02-18 06:22:15,563 INFO L226 Difference]: Without dead ends: 155 [2023-02-18 06:22:15,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 06:22:15,564 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 147 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 06:22:15,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 112 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 06:22:15,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2023-02-18 06:22:15,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 151. [2023-02-18 06:22:15,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 101 states have (on average 1.603960396039604) internal successors, (162), 150 states have internal predecessors, (162), 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) [2023-02-18 06:22:15,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 162 transitions. [2023-02-18 06:22:15,579 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 162 transitions. Word has length 3 [2023-02-18 06:22:15,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 06:22:15,579 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 162 transitions. [2023-02-18 06:22:15,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-02-18 06:22:15,580 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 162 transitions. [2023-02-18 06:22:15,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-18 06:22:15,580 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 06:22:15,580 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 06:22:15,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 06:22:15,580 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-02-18 06:22:15,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 06:22:15,581 INFO L85 PathProgramCache]: Analyzing trace with hash 59263661, now seen corresponding path program 1 times [2023-02-18 06:22:15,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 06:22:15,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478518819] [2023-02-18 06:22:15,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:15,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 06:22:15,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:15,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:15,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 06:22:15,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478518819] [2023-02-18 06:22:15,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478518819] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 06:22:15,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 06:22:15,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 06:22:15,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813014200] [2023-02-18 06:22:15,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 06:22:15,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 06:22:15,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 06:22:15,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 06:22:15,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 06:22:15,726 INFO L87 Difference]: Start difference. First operand 151 states and 162 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) 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) [2023-02-18 06:22:15,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 06:22:15,806 INFO L93 Difference]: Finished difference Result 161 states and 171 transitions. [2023-02-18 06:22:15,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 06:22:15,807 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) 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 [2023-02-18 06:22:15,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 06:22:15,807 INFO L225 Difference]: With dead ends: 161 [2023-02-18 06:22:15,808 INFO L226 Difference]: Without dead ends: 161 [2023-02-18 06:22:15,808 INFO L412 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 [2023-02-18 06:22:15,808 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 260 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 06:22:15,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 116 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 06:22:15,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-02-18 06:22:15,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 153. [2023-02-18 06:22:15,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 108 states have (on average 1.5555555555555556) internal successors, (168), 152 states have internal predecessors, (168), 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) [2023-02-18 06:22:15,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 168 transitions. [2023-02-18 06:22:15,812 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 168 transitions. Word has length 8 [2023-02-18 06:22:15,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 06:22:15,812 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 168 transitions. [2023-02-18 06:22:15,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) 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) [2023-02-18 06:22:15,813 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 168 transitions. [2023-02-18 06:22:15,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-18 06:22:15,813 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 06:22:15,813 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 06:22:15,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-18 06:22:15,814 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-02-18 06:22:15,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 06:22:15,814 INFO L85 PathProgramCache]: Analyzing trace with hash 59263662, now seen corresponding path program 1 times [2023-02-18 06:22:15,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 06:22:15,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584933407] [2023-02-18 06:22:15,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:15,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 06:22:15,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:15,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:15,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 06:22:15,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584933407] [2023-02-18 06:22:15,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584933407] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 06:22:15,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 06:22:15,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 06:22:15,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235710128] [2023-02-18 06:22:15,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 06:22:15,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 06:22:15,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 06:22:15,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 06:22:15,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 06:22:15,912 INFO L87 Difference]: Start difference. First operand 153 states and 168 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) 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) [2023-02-18 06:22:16,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 06:22:16,029 INFO L93 Difference]: Finished difference Result 244 states and 260 transitions. [2023-02-18 06:22:16,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 06:22:16,030 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) 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 [2023-02-18 06:22:16,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 06:22:16,031 INFO L225 Difference]: With dead ends: 244 [2023-02-18 06:22:16,031 INFO L226 Difference]: Without dead ends: 244 [2023-02-18 06:22:16,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-18 06:22:16,043 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 318 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 06:22:16,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 184 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 06:22:16,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2023-02-18 06:22:16,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 158. [2023-02-18 06:22:16,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 113 states have (on average 1.5309734513274336) internal successors, (173), 157 states have internal predecessors, (173), 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) [2023-02-18 06:22:16,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 173 transitions. [2023-02-18 06:22:16,055 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 173 transitions. Word has length 8 [2023-02-18 06:22:16,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 06:22:16,055 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 173 transitions. [2023-02-18 06:22:16,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) 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) [2023-02-18 06:22:16,055 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 173 transitions. [2023-02-18 06:22:16,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-18 06:22:16,055 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 06:22:16,056 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 06:22:16,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-18 06:22:16,057 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-02-18 06:22:16,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 06:22:16,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1837174119, now seen corresponding path program 1 times [2023-02-18 06:22:16,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 06:22:16,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402948146] [2023-02-18 06:22:16,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:16,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 06:22:16,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:16,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:16,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 06:22:16,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402948146] [2023-02-18 06:22:16,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402948146] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 06:22:16,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 06:22:16,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 06:22:16,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066277107] [2023-02-18 06:22:16,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 06:22:16,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 06:22:16,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 06:22:16,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 06:22:16,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 06:22:16,092 INFO L87 Difference]: Start difference. First operand 158 states and 173 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-02-18 06:22:16,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 06:22:16,114 INFO L93 Difference]: Finished difference Result 148 states and 162 transitions. [2023-02-18 06:22:16,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 06:22:16,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2023-02-18 06:22:16,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 06:22:16,115 INFO L225 Difference]: With dead ends: 148 [2023-02-18 06:22:16,115 INFO L226 Difference]: Without dead ends: 148 [2023-02-18 06:22:16,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 06:22:16,116 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 125 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 06:22:16,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 135 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 06:22:16,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-02-18 06:22:16,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2023-02-18 06:22:16,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 108 states have (on average 1.5) internal successors, (162), 147 states have internal predecessors, (162), 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) [2023-02-18 06:22:16,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 162 transitions. [2023-02-18 06:22:16,118 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 162 transitions. Word has length 9 [2023-02-18 06:22:16,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 06:22:16,118 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 162 transitions. [2023-02-18 06:22:16,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-02-18 06:22:16,119 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 162 transitions. [2023-02-18 06:22:16,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-18 06:22:16,119 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 06:22:16,119 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 06:22:16,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-18 06:22:16,120 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-02-18 06:22:16,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 06:22:16,120 INFO L85 PathProgramCache]: Analyzing trace with hash 467003055, now seen corresponding path program 1 times [2023-02-18 06:22:16,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 06:22:16,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286375230] [2023-02-18 06:22:16,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:16,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 06:22:16,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:16,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:16,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 06:22:16,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286375230] [2023-02-18 06:22:16,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286375230] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 06:22:16,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 06:22:16,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-18 06:22:16,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995939430] [2023-02-18 06:22:16,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 06:22:16,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 06:22:16,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 06:22:16,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 06:22:16,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-02-18 06:22:16,260 INFO L87 Difference]: Start difference. First operand 148 states and 162 transitions. Second operand has 6 states, 5 states have (on average 2.4) 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) [2023-02-18 06:22:16,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 06:22:16,431 INFO L93 Difference]: Finished difference Result 219 states and 234 transitions. [2023-02-18 06:22:16,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-18 06:22:16,431 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) 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 [2023-02-18 06:22:16,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 06:22:16,432 INFO L225 Difference]: With dead ends: 219 [2023-02-18 06:22:16,432 INFO L226 Difference]: Without dead ends: 219 [2023-02-18 06:22:16,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-02-18 06:22:16,434 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 110 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 06:22:16,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 682 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 06:22:16,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-02-18 06:22:16,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 147. [2023-02-18 06:22:16,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 108 states have (on average 1.4907407407407407) internal successors, (161), 146 states have internal predecessors, (161), 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) [2023-02-18 06:22:16,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 161 transitions. [2023-02-18 06:22:16,438 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 161 transitions. Word has length 12 [2023-02-18 06:22:16,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 06:22:16,438 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 161 transitions. [2023-02-18 06:22:16,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) 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) [2023-02-18 06:22:16,439 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 161 transitions. [2023-02-18 06:22:16,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-18 06:22:16,439 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 06:22:16,439 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 06:22:16,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-18 06:22:16,439 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-02-18 06:22:16,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 06:22:16,440 INFO L85 PathProgramCache]: Analyzing trace with hash 467003056, now seen corresponding path program 1 times [2023-02-18 06:22:16,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 06:22:16,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354781124] [2023-02-18 06:22:16,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:16,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 06:22:16,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:16,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:16,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 06:22:16,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354781124] [2023-02-18 06:22:16,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354781124] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 06:22:16,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 06:22:16,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-18 06:22:16,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114853963] [2023-02-18 06:22:16,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 06:22:16,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 06:22:16,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 06:22:16,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 06:22:16,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-02-18 06:22:16,564 INFO L87 Difference]: Start difference. First operand 147 states and 161 transitions. Second operand has 6 states, 5 states have (on average 2.4) 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) [2023-02-18 06:22:16,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 06:22:16,771 INFO L93 Difference]: Finished difference Result 211 states and 228 transitions. [2023-02-18 06:22:16,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-18 06:22:16,772 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) 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 [2023-02-18 06:22:16,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 06:22:16,772 INFO L225 Difference]: With dead ends: 211 [2023-02-18 06:22:16,773 INFO L226 Difference]: Without dead ends: 211 [2023-02-18 06:22:16,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-02-18 06:22:16,773 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 97 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 676 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 06:22:16,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 676 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 06:22:16,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-02-18 06:22:16,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 136. [2023-02-18 06:22:16,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 103 states have (on average 1.4466019417475728) internal successors, (149), 135 states have internal predecessors, (149), 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) [2023-02-18 06:22:16,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 149 transitions. [2023-02-18 06:22:16,775 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 149 transitions. Word has length 12 [2023-02-18 06:22:16,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 06:22:16,776 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 149 transitions. [2023-02-18 06:22:16,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) 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) [2023-02-18 06:22:16,776 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 149 transitions. [2023-02-18 06:22:16,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-18 06:22:16,776 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 06:22:16,776 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 06:22:16,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-18 06:22:16,777 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-02-18 06:22:16,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 06:22:16,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1603335132, now seen corresponding path program 1 times [2023-02-18 06:22:16,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 06:22:16,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365038750] [2023-02-18 06:22:16,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:16,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 06:22:16,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:16,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:16,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 06:22:16,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365038750] [2023-02-18 06:22:16,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365038750] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 06:22:16,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 06:22:16,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 06:22:16,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618892827] [2023-02-18 06:22:16,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 06:22:16,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 06:22:16,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 06:22:16,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 06:22:16,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 06:22:16,795 INFO L87 Difference]: Start difference. First operand 136 states and 149 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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) [2023-02-18 06:22:16,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 06:22:16,811 INFO L93 Difference]: Finished difference Result 191 states and 211 transitions. [2023-02-18 06:22:16,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 06:22:16,811 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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 [2023-02-18 06:22:16,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 06:22:16,812 INFO L225 Difference]: With dead ends: 191 [2023-02-18 06:22:16,812 INFO L226 Difference]: Without dead ends: 191 [2023-02-18 06:22:16,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 06:22:16,812 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 47 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 06:22:16,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 250 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 06:22:16,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2023-02-18 06:22:16,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 149. [2023-02-18 06:22:16,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 116 states have (on average 1.4051724137931034) internal successors, (163), 148 states have internal predecessors, (163), 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) [2023-02-18 06:22:16,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 163 transitions. [2023-02-18 06:22:16,814 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 163 transitions. Word has length 15 [2023-02-18 06:22:16,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 06:22:16,815 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 163 transitions. [2023-02-18 06:22:16,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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) [2023-02-18 06:22:16,815 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 163 transitions. [2023-02-18 06:22:16,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-18 06:22:16,815 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 06:22:16,815 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 06:22:16,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-02-18 06:22:16,815 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-02-18 06:22:16,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 06:22:16,816 INFO L85 PathProgramCache]: Analyzing trace with hash -775737061, now seen corresponding path program 1 times [2023-02-18 06:22:16,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 06:22:16,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460825888] [2023-02-18 06:22:16,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:16,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 06:22:16,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:16,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:16,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 06:22:16,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460825888] [2023-02-18 06:22:16,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460825888] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 06:22:16,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 06:22:16,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-18 06:22:16,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7079382] [2023-02-18 06:22:16,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 06:22:16,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 06:22:16,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 06:22:16,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 06:22:16,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-02-18 06:22:16,869 INFO L87 Difference]: Start difference. First operand 149 states and 163 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 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) [2023-02-18 06:22:16,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 06:22:16,937 INFO L93 Difference]: Finished difference Result 149 states and 163 transitions. [2023-02-18 06:22:16,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-18 06:22:16,937 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-02-18 06:22:16,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 06:22:16,938 INFO L225 Difference]: With dead ends: 149 [2023-02-18 06:22:16,938 INFO L226 Difference]: Without dead ends: 149 [2023-02-18 06:22:16,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-02-18 06:22:16,939 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 90 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 06:22:16,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 541 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 06:22:16,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-02-18 06:22:16,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 147. [2023-02-18 06:22:16,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 115 states have (on average 1.4) internal successors, (161), 146 states have internal predecessors, (161), 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) [2023-02-18 06:22:16,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 161 transitions. [2023-02-18 06:22:16,941 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 161 transitions. Word has length 19 [2023-02-18 06:22:16,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 06:22:16,941 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 161 transitions. [2023-02-18 06:22:16,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 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) [2023-02-18 06:22:16,941 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 161 transitions. [2023-02-18 06:22:16,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-18 06:22:16,941 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 06:22:16,941 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 06:22:16,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-02-18 06:22:16,942 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr59REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-02-18 06:22:16,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 06:22:16,942 INFO L85 PathProgramCache]: Analyzing trace with hash 73317399, now seen corresponding path program 1 times [2023-02-18 06:22:16,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 06:22:16,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776719718] [2023-02-18 06:22:16,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:16,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 06:22:16,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:17,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:17,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 06:22:17,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776719718] [2023-02-18 06:22:17,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776719718] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 06:22:17,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 06:22:17,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-18 06:22:17,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347737727] [2023-02-18 06:22:17,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 06:22:17,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 06:22:17,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 06:22:17,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 06:22:17,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-02-18 06:22:17,050 INFO L87 Difference]: Start difference. First operand 147 states and 161 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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) [2023-02-18 06:22:17,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 06:22:17,131 INFO L93 Difference]: Finished difference Result 156 states and 170 transitions. [2023-02-18 06:22:17,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-18 06:22:17,132 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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 20 [2023-02-18 06:22:17,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 06:22:17,133 INFO L225 Difference]: With dead ends: 156 [2023-02-18 06:22:17,133 INFO L226 Difference]: Without dead ends: 156 [2023-02-18 06:22:17,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-02-18 06:22:17,134 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 12 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 06:22:17,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 572 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 06:22:17,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-02-18 06:22:17,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 152. [2023-02-18 06:22:17,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 120 states have (on average 1.3833333333333333) internal successors, (166), 151 states have internal predecessors, (166), 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) [2023-02-18 06:22:17,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 166 transitions. [2023-02-18 06:22:17,136 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 166 transitions. Word has length 20 [2023-02-18 06:22:17,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 06:22:17,137 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 166 transitions. [2023-02-18 06:22:17,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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) [2023-02-18 06:22:17,137 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 166 transitions. [2023-02-18 06:22:17,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-02-18 06:22:17,138 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 06:22:17,138 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 06:22:17,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-02-18 06:22:17,139 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-02-18 06:22:17,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 06:22:17,139 INFO L85 PathProgramCache]: Analyzing trace with hash -800612379, now seen corresponding path program 1 times [2023-02-18 06:22:17,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 06:22:17,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987668865] [2023-02-18 06:22:17,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:17,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 06:22:17,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:17,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:17,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 06:22:17,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987668865] [2023-02-18 06:22:17,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987668865] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 06:22:17,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 06:22:17,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-18 06:22:17,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236108719] [2023-02-18 06:22:17,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 06:22:17,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 06:22:17,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 06:22:17,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 06:22:17,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-18 06:22:17,174 INFO L87 Difference]: Start difference. First operand 152 states and 166 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 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) [2023-02-18 06:22:17,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 06:22:17,250 INFO L93 Difference]: Finished difference Result 152 states and 165 transitions. [2023-02-18 06:22:17,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 06:22:17,251 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 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 22 [2023-02-18 06:22:17,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 06:22:17,254 INFO L225 Difference]: With dead ends: 152 [2023-02-18 06:22:17,254 INFO L226 Difference]: Without dead ends: 152 [2023-02-18 06:22:17,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-18 06:22:17,255 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 124 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 06:22:17,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 296 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 06:22:17,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-02-18 06:22:17,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2023-02-18 06:22:17,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 120 states have (on average 1.375) internal successors, (165), 151 states have internal predecessors, (165), 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) [2023-02-18 06:22:17,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 165 transitions. [2023-02-18 06:22:17,257 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 165 transitions. Word has length 22 [2023-02-18 06:22:17,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 06:22:17,257 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 165 transitions. [2023-02-18 06:22:17,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 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) [2023-02-18 06:22:17,258 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 165 transitions. [2023-02-18 06:22:17,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-18 06:22:17,259 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 06:22:17,260 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 06:22:17,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-02-18 06:22:17,260 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr64REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-02-18 06:22:17,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 06:22:17,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1089542561, now seen corresponding path program 1 times [2023-02-18 06:22:17,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 06:22:17,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155425073] [2023-02-18 06:22:17,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:17,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 06:22:17,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:17,384 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:17,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 06:22:17,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155425073] [2023-02-18 06:22:17,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155425073] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 06:22:17,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044328458] [2023-02-18 06:22:17,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:17,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 06:22:17,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 06:22:17,421 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) [2023-02-18 06:22:17,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-18 06:22:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:17,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-18 06:22:17,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 06:22:17,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-02-18 06:22:17,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-02-18 06:22:17,556 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:17,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 06:22:17,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:17,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044328458] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 06:22:17,610 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 06:22:17,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 11 [2023-02-18 06:22:17,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167771713] [2023-02-18 06:22:17,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 06:22:17,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-18 06:22:17,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 06:22:17,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-18 06:22:17,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-02-18 06:22:17,611 INFO L87 Difference]: Start difference. First operand 152 states and 165 transitions. Second operand has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 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) [2023-02-18 06:22:17,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 06:22:17,785 INFO L93 Difference]: Finished difference Result 181 states and 199 transitions. [2023-02-18 06:22:17,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-18 06:22:17,785 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 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 25 [2023-02-18 06:22:17,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 06:22:17,787 INFO L225 Difference]: With dead ends: 181 [2023-02-18 06:22:17,787 INFO L226 Difference]: Without dead ends: 181 [2023-02-18 06:22:17,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2023-02-18 06:22:17,788 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 127 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 06:22:17,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 712 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 06:22:17,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-02-18 06:22:17,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 162. [2023-02-18 06:22:17,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 130 states have (on average 1.353846153846154) internal successors, (176), 161 states have internal predecessors, (176), 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) [2023-02-18 06:22:17,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 176 transitions. [2023-02-18 06:22:17,790 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 176 transitions. Word has length 25 [2023-02-18 06:22:17,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 06:22:17,791 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 176 transitions. [2023-02-18 06:22:17,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 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) [2023-02-18 06:22:17,791 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 176 transitions. [2023-02-18 06:22:17,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-02-18 06:22:17,793 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 06:22:17,793 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 06:22:17,800 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-18 06:22:17,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-02-18 06:22:17,998 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr69ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-02-18 06:22:17,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 06:22:17,998 INFO L85 PathProgramCache]: Analyzing trace with hash 583917852, now seen corresponding path program 1 times [2023-02-18 06:22:17,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 06:22:17,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412901637] [2023-02-18 06:22:17,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:17,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 06:22:18,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:18,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:18,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 06:22:18,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412901637] [2023-02-18 06:22:18,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412901637] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 06:22:18,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374476894] [2023-02-18 06:22:18,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:18,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 06:22:18,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 06:22:18,096 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) [2023-02-18 06:22:18,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-18 06:22:18,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:18,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-18 06:22:18,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 06:22:18,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-02-18 06:22:18,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:18,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 06:22:18,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:18,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [374476894] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 06:22:18,279 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 06:22:18,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2023-02-18 06:22:18,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66734890] [2023-02-18 06:22:18,279 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 06:22:18,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 06:22:18,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 06:22:18,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 06:22:18,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-02-18 06:22:18,280 INFO L87 Difference]: Start difference. First operand 162 states and 176 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 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) [2023-02-18 06:22:18,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 06:22:18,371 INFO L93 Difference]: Finished difference Result 172 states and 185 transitions. [2023-02-18 06:22:18,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 06:22:18,371 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-02-18 06:22:18,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 06:22:18,372 INFO L225 Difference]: With dead ends: 172 [2023-02-18 06:22:18,372 INFO L226 Difference]: Without dead ends: 153 [2023-02-18 06:22:18,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 39 SyntacticMatches, 12 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-02-18 06:22:18,373 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 12 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 06:22:18,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 369 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 06:22:18,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2023-02-18 06:22:18,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2023-02-18 06:22:18,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 121 states have (on average 1.371900826446281) internal successors, (166), 152 states have internal predecessors, (166), 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) [2023-02-18 06:22:18,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 166 transitions. [2023-02-18 06:22:18,375 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 166 transitions. Word has length 26 [2023-02-18 06:22:18,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 06:22:18,375 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 166 transitions. [2023-02-18 06:22:18,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 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) [2023-02-18 06:22:18,376 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 166 transitions. [2023-02-18 06:22:18,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-02-18 06:22:18,376 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 06:22:18,376 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 06:22:18,393 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-18 06:22:18,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-02-18 06:22:18,581 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-02-18 06:22:18,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 06:22:18,582 INFO L85 PathProgramCache]: Analyzing trace with hash -370767273, now seen corresponding path program 1 times [2023-02-18 06:22:18,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 06:22:18,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083208534] [2023-02-18 06:22:18,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:18,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 06:22:18,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:18,727 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:18,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 06:22:18,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083208534] [2023-02-18 06:22:18,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083208534] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 06:22:18,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039468973] [2023-02-18 06:22:18,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:18,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 06:22:18,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 06:22:18,729 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 06:22:18,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-18 06:22:18,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:18,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 26 conjunts are in the unsatisfiable core [2023-02-18 06:22:18,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 06:22:18,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-02-18 06:22:18,823 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:18,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2023-02-18 06:22:18,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-18 06:22:18,911 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:18,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 42 [2023-02-18 06:22:18,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2023-02-18 06:22:18,940 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:18,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 42 [2023-02-18 06:22:18,975 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:18,975 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 41 [2023-02-18 06:22:18,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-02-18 06:22:18,983 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:18,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 06:22:18,990 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_305 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_305) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 0))) is different from false [2023-02-18 06:22:19,053 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:19,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 20 [2023-02-18 06:22:19,061 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:19,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 36 [2023-02-18 06:22:19,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-02-18 06:22:19,115 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:19,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039468973] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 06:22:19,115 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 06:22:19,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 24 [2023-02-18 06:22:19,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654498227] [2023-02-18 06:22:19,117 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 06:22:19,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-18 06:22:19,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 06:22:19,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-18 06:22:19,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=433, Unknown=9, NotChecked=42, Total=552 [2023-02-18 06:22:19,118 INFO L87 Difference]: Start difference. First operand 153 states and 166 transitions. Second operand has 24 states, 24 states have (on average 3.0) internal successors, (72), 24 states have internal predecessors, (72), 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) [2023-02-18 06:22:19,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 06:22:19,793 INFO L93 Difference]: Finished difference Result 263 states and 286 transitions. [2023-02-18 06:22:19,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-02-18 06:22:19,793 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.0) internal successors, (72), 24 states have internal predecessors, (72), 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 29 [2023-02-18 06:22:19,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 06:22:19,794 INFO L225 Difference]: With dead ends: 263 [2023-02-18 06:22:19,794 INFO L226 Difference]: Without dead ends: 263 [2023-02-18 06:22:19,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=191, Invalid=795, Unknown=10, NotChecked=60, Total=1056 [2023-02-18 06:22:19,795 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 506 mSDsluCounter, 1098 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 1189 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 241 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-18 06:22:19,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 1189 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 919 Invalid, 0 Unknown, 241 Unchecked, 0.5s Time] [2023-02-18 06:22:19,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2023-02-18 06:22:19,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 168. [2023-02-18 06:22:19,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 136 states have (on average 1.3455882352941178) internal successors, (183), 167 states have internal predecessors, (183), 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) [2023-02-18 06:22:19,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 183 transitions. [2023-02-18 06:22:19,798 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 183 transitions. Word has length 29 [2023-02-18 06:22:19,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 06:22:19,798 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 183 transitions. [2023-02-18 06:22:19,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.0) internal successors, (72), 24 states have internal predecessors, (72), 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) [2023-02-18 06:22:19,798 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 183 transitions. [2023-02-18 06:22:19,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-02-18 06:22:19,809 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 06:22:19,809 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 06:22:19,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-18 06:22:20,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 06:22:20,014 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-02-18 06:22:20,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 06:22:20,014 INFO L85 PathProgramCache]: Analyzing trace with hash -751968760, now seen corresponding path program 1 times [2023-02-18 06:22:20,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 06:22:20,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432590601] [2023-02-18 06:22:20,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:20,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 06:22:20,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:20,064 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:20,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 06:22:20,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432590601] [2023-02-18 06:22:20,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432590601] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 06:22:20,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 06:22:20,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 06:22:20,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901770208] [2023-02-18 06:22:20,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 06:22:20,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 06:22:20,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 06:22:20,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 06:22:20,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 06:22:20,065 INFO L87 Difference]: Start difference. First operand 168 states and 183 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2023-02-18 06:22:20,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 06:22:20,088 INFO L93 Difference]: Finished difference Result 239 states and 260 transitions. [2023-02-18 06:22:20,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 06:22:20,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 30 [2023-02-18 06:22:20,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 06:22:20,089 INFO L225 Difference]: With dead ends: 239 [2023-02-18 06:22:20,089 INFO L226 Difference]: Without dead ends: 239 [2023-02-18 06:22:20,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 06:22:20,090 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 55 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 06:22:20,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 245 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 06:22:20,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2023-02-18 06:22:20,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 186. [2023-02-18 06:22:20,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 154 states have (on average 1.3051948051948052) internal successors, (201), 185 states have internal predecessors, (201), 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) [2023-02-18 06:22:20,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 201 transitions. [2023-02-18 06:22:20,092 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 201 transitions. Word has length 30 [2023-02-18 06:22:20,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 06:22:20,092 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 201 transitions. [2023-02-18 06:22:20,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2023-02-18 06:22:20,093 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 201 transitions. [2023-02-18 06:22:20,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-02-18 06:22:20,093 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 06:22:20,093 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 06:22:20,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-02-18 06:22:20,093 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr59REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-02-18 06:22:20,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 06:22:20,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1573046208, now seen corresponding path program 1 times [2023-02-18 06:22:20,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 06:22:20,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479535076] [2023-02-18 06:22:20,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:20,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 06:22:20,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:20,259 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:20,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 06:22:20,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479535076] [2023-02-18 06:22:20,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479535076] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 06:22:20,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818886080] [2023-02-18 06:22:20,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:20,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 06:22:20,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 06:22:20,261 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 06:22:20,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-18 06:22:20,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:20,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 31 conjunts are in the unsatisfiable core [2023-02-18 06:22:20,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 06:22:20,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-02-18 06:22:20,362 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:20,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2023-02-18 06:22:20,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-18 06:22:20,429 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:20,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 66 [2023-02-18 06:22:20,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 32 [2023-02-18 06:22:20,449 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:20,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 66 [2023-02-18 06:22:20,481 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:20,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 65 [2023-02-18 06:22:20,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2023-02-18 06:22:20,516 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:20,516 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 06:22:20,594 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:20,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2023-02-18 06:22:20,597 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:20,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 37 [2023-02-18 06:22:20,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-18 06:22:20,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:20,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818886080] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 06:22:20,692 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 06:22:20,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 10] total 29 [2023-02-18 06:22:20,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162399768] [2023-02-18 06:22:20,692 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 06:22:20,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-02-18 06:22:20,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 06:22:20,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-02-18 06:22:20,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=707, Unknown=17, NotChecked=0, Total=870 [2023-02-18 06:22:20,693 INFO L87 Difference]: Start difference. First operand 186 states and 201 transitions. Second operand has 30 states, 29 states have (on average 3.9310344827586206) internal successors, (114), 30 states have internal predecessors, (114), 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) [2023-02-18 06:22:21,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 06:22:21,259 INFO L93 Difference]: Finished difference Result 324 states and 351 transitions. [2023-02-18 06:22:21,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-02-18 06:22:21,260 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 3.9310344827586206) internal successors, (114), 30 states have internal predecessors, (114), 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 39 [2023-02-18 06:22:21,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 06:22:21,260 INFO L225 Difference]: With dead ends: 324 [2023-02-18 06:22:21,261 INFO L226 Difference]: Without dead ends: 324 [2023-02-18 06:22:21,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=429, Invalid=1534, Unknown=17, NotChecked=0, Total=1980 [2023-02-18 06:22:21,261 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 954 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 964 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 1086 SdHoareTripleChecker+Invalid, 1014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-18 06:22:21,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [954 Valid, 1086 Invalid, 1014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 964 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-18 06:22:21,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2023-02-18 06:22:21,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 197. [2023-02-18 06:22:21,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 165 states have (on average 1.309090909090909) internal successors, (216), 196 states have internal predecessors, (216), 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) [2023-02-18 06:22:21,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 216 transitions. [2023-02-18 06:22:21,264 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 216 transitions. Word has length 39 [2023-02-18 06:22:21,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 06:22:21,264 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 216 transitions. [2023-02-18 06:22:21,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 3.9310344827586206) internal successors, (114), 30 states have internal predecessors, (114), 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) [2023-02-18 06:22:21,264 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 216 transitions. [2023-02-18 06:22:21,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-02-18 06:22:21,265 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 06:22:21,265 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 06:22:21,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-18 06:22:21,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-02-18 06:22:21,470 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr60REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-02-18 06:22:21,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 06:22:21,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1573046209, now seen corresponding path program 1 times [2023-02-18 06:22:21,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 06:22:21,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412807681] [2023-02-18 06:22:21,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:21,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 06:22:21,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:21,729 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:21,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 06:22:21,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412807681] [2023-02-18 06:22:21,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412807681] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 06:22:21,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877221866] [2023-02-18 06:22:21,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:21,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 06:22:21,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 06:22:21,731 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 06:22:21,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-18 06:22:21,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:21,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 44 conjunts are in the unsatisfiable core [2023-02-18 06:22:21,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 06:22:21,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-02-18 06:22:21,829 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:21,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2023-02-18 06:22:21,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-02-18 06:22:21,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-18 06:22:21,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-18 06:22:21,903 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:21,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 30 [2023-02-18 06:22:21,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-02-18 06:22:21,908 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:21,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 43 [2023-02-18 06:22:21,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2023-02-18 06:22:21,931 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:21,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 51 [2023-02-18 06:22:21,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-02-18 06:22:21,964 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:21,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 42 [2023-02-18 06:22:21,967 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-02-18 06:22:21,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-02-18 06:22:21,997 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:21,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 06:22:22,055 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_491 (Array Int Int))) (<= (+ (+ 4 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_491) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) 4) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_490) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))) (forall ((v_ArrVal_491 (Array Int Int))) (<= 0 (+ 4 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_491) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))))) is different from false [2023-02-18 06:22:22,061 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_491 (Array Int Int))) (<= (+ (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem4#1.base| v_ArrVal_491) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 4) 4) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem4#1.base| v_ArrVal_490) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))) (forall ((v_ArrVal_491 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem4#1.base| v_ArrVal_491) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 4)))) is different from false [2023-02-18 06:22:22,064 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~item~0#1.base|) |c_ULTIMATE.start_main_~item~0#1.offset|))) (and (forall ((v_ArrVal_491 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_491) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 4))) (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_491 (Array Int Int))) (<= (+ (+ (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_491) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 4) 4) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_490) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))))) is different from false [2023-02-18 06:22:22,068 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:22,069 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2023-02-18 06:22:22,070 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:22,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 37 [2023-02-18 06:22:22,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-18 06:22:22,075 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:22,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 40 [2023-02-18 06:22:22,077 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:22,077 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2023-02-18 06:22:22,079 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-18 06:22:22,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2023-02-18 06:22:22,081 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-18 06:22:22,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2023-02-18 06:22:22,164 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:22,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877221866] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 06:22:22,164 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 06:22:22,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 10] total 31 [2023-02-18 06:22:22,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831176933] [2023-02-18 06:22:22,165 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 06:22:22,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-02-18 06:22:22,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 06:22:22,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-02-18 06:22:22,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=722, Unknown=3, NotChecked=168, Total=992 [2023-02-18 06:22:22,166 INFO L87 Difference]: Start difference. First operand 197 states and 216 transitions. Second operand has 32 states, 31 states have (on average 3.7096774193548385) internal successors, (115), 32 states have internal predecessors, (115), 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) [2023-02-18 06:22:23,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 06:22:23,182 INFO L93 Difference]: Finished difference Result 325 states and 350 transitions. [2023-02-18 06:22:23,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-02-18 06:22:23,183 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.7096774193548385) internal successors, (115), 32 states have internal predecessors, (115), 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 39 [2023-02-18 06:22:23,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 06:22:23,184 INFO L225 Difference]: With dead ends: 325 [2023-02-18 06:22:23,184 INFO L226 Difference]: Without dead ends: 325 [2023-02-18 06:22:23,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 58 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=471, Invalid=2294, Unknown=3, NotChecked=312, Total=3080 [2023-02-18 06:22:23,185 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 632 mSDsluCounter, 1263 mSDsCounter, 0 mSdLazyCounter, 1488 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 2129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 576 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-02-18 06:22:23,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 1343 Invalid, 2129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1488 Invalid, 0 Unknown, 576 Unchecked, 0.7s Time] [2023-02-18 06:22:23,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2023-02-18 06:22:23,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 201. [2023-02-18 06:22:23,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 169 states have (on average 1.301775147928994) internal successors, (220), 200 states have internal predecessors, (220), 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) [2023-02-18 06:22:23,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 220 transitions. [2023-02-18 06:22:23,188 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 220 transitions. Word has length 39 [2023-02-18 06:22:23,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 06:22:23,188 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 220 transitions. [2023-02-18 06:22:23,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.7096774193548385) internal successors, (115), 32 states have internal predecessors, (115), 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) [2023-02-18 06:22:23,188 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 220 transitions. [2023-02-18 06:22:23,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-02-18 06:22:23,188 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 06:22:23,188 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 06:22:23,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-18 06:22:23,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-02-18 06:22:23,394 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-02-18 06:22:23,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 06:22:23,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1519790839, now seen corresponding path program 1 times [2023-02-18 06:22:23,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 06:22:23,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142581270] [2023-02-18 06:22:23,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:23,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 06:22:23,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:23,414 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-18 06:22:23,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 06:22:23,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142581270] [2023-02-18 06:22:23,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142581270] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 06:22:23,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 06:22:23,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 06:22:23,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428734277] [2023-02-18 06:22:23,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 06:22:23,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 06:22:23,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 06:22:23,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 06:22:23,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 06:22:23,415 INFO L87 Difference]: Start difference. First operand 201 states and 220 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2023-02-18 06:22:23,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 06:22:23,421 INFO L93 Difference]: Finished difference Result 202 states and 220 transitions. [2023-02-18 06:22:23,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 06:22:23,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 40 [2023-02-18 06:22:23,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 06:22:23,422 INFO L225 Difference]: With dead ends: 202 [2023-02-18 06:22:23,422 INFO L226 Difference]: Without dead ends: 202 [2023-02-18 06:22:23,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 06:22:23,422 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 06:22:23,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 262 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 06:22:23,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2023-02-18 06:22:23,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2023-02-18 06:22:23,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 170 states have (on average 1.2941176470588236) internal successors, (220), 201 states have internal predecessors, (220), 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) [2023-02-18 06:22:23,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 220 transitions. [2023-02-18 06:22:23,425 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 220 transitions. Word has length 40 [2023-02-18 06:22:23,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 06:22:23,425 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 220 transitions. [2023-02-18 06:22:23,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2023-02-18 06:22:23,425 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 220 transitions. [2023-02-18 06:22:23,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-02-18 06:22:23,426 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 06:22:23,426 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 06:22:23,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-02-18 06:22:23,426 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-02-18 06:22:23,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 06:22:23,427 INFO L85 PathProgramCache]: Analyzing trace with hash 231761564, now seen corresponding path program 1 times [2023-02-18 06:22:23,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 06:22:23,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629351707] [2023-02-18 06:22:23,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:23,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 06:22:23,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:23,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:23,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 06:22:23,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629351707] [2023-02-18 06:22:23,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629351707] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 06:22:23,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128247705] [2023-02-18 06:22:23,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:23,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 06:22:23,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 06:22:23,764 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 06:22:23,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-18 06:22:23,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:23,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 49 conjunts are in the unsatisfiable core [2023-02-18 06:22:23,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 06:22:23,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-02-18 06:22:23,848 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:23,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2023-02-18 06:22:23,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-02-18 06:22:23,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-18 06:22:23,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-18 06:22:23,910 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:23,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 43 [2023-02-18 06:22:23,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2023-02-18 06:22:23,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 06:22:23,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-02-18 06:22:23,941 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:23,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 92 treesize of output 97 [2023-02-18 06:22:23,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2023-02-18 06:22:23,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-02-18 06:22:23,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-02-18 06:22:24,025 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:24,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 46 [2023-02-18 06:22:24,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-02-18 06:22:24,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-02-18 06:22:24,076 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-18 06:22:24,076 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:24,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 10 [2023-02-18 06:22:24,089 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:24,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 06:22:24,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 60 [2023-02-18 06:22:24,249 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:24,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2023-02-18 06:22:24,251 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:24,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 33 [2023-02-18 06:22:24,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-02-18 06:22:24,255 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:24,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 25 [2023-02-18 06:22:24,257 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-18 06:22:24,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 06:22:24,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 06:22:24,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2023-02-18 06:22:24,262 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:24,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2023-02-18 06:22:24,263 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-18 06:22:24,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 06:22:24,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 06:22:24,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-02-18 06:22:24,334 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:24,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128247705] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 06:22:24,334 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 06:22:24,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 14, 14] total 37 [2023-02-18 06:22:24,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875904706] [2023-02-18 06:22:24,335 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 06:22:24,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-02-18 06:22:24,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 06:22:24,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-02-18 06:22:24,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1213, Unknown=0, NotChecked=0, Total=1332 [2023-02-18 06:22:24,336 INFO L87 Difference]: Start difference. First operand 202 states and 220 transitions. Second operand has 37 states, 37 states have (on average 3.135135135135135) internal successors, (116), 37 states have internal predecessors, (116), 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) [2023-02-18 06:22:25,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 06:22:25,811 INFO L93 Difference]: Finished difference Result 332 states and 357 transitions. [2023-02-18 06:22:25,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-02-18 06:22:25,811 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 3.135135135135135) internal successors, (116), 37 states have internal predecessors, (116), 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 42 [2023-02-18 06:22:25,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 06:22:25,812 INFO L225 Difference]: With dead ends: 332 [2023-02-18 06:22:25,812 INFO L226 Difference]: Without dead ends: 332 [2023-02-18 06:22:25,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 63 SyntacticMatches, 3 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 840 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=502, Invalid=3158, Unknown=0, NotChecked=0, Total=3660 [2023-02-18 06:22:25,813 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 1249 mSDsluCounter, 1854 mSDsCounter, 0 mSdLazyCounter, 1818 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1249 SdHoareTripleChecker+Valid, 1943 SdHoareTripleChecker+Invalid, 1878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-02-18 06:22:25,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1249 Valid, 1943 Invalid, 1878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1818 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-02-18 06:22:25,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2023-02-18 06:22:25,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 201. [2023-02-18 06:22:25,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 169 states have (on average 1.2899408284023668) internal successors, (218), 200 states have internal predecessors, (218), 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) [2023-02-18 06:22:25,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 218 transitions. [2023-02-18 06:22:25,816 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 218 transitions. Word has length 42 [2023-02-18 06:22:25,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 06:22:25,816 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 218 transitions. [2023-02-18 06:22:25,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 3.135135135135135) internal successors, (116), 37 states have internal predecessors, (116), 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) [2023-02-18 06:22:25,816 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 218 transitions. [2023-02-18 06:22:25,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-02-18 06:22:25,817 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 06:22:25,817 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 06:22:25,823 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-18 06:22:26,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 06:22:26,017 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr64REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-02-18 06:22:26,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 06:22:26,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1588995560, now seen corresponding path program 1 times [2023-02-18 06:22:26,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 06:22:26,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133465703] [2023-02-18 06:22:26,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:26,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 06:22:26,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:26,205 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:26,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 06:22:26,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133465703] [2023-02-18 06:22:26,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133465703] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 06:22:26,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220353398] [2023-02-18 06:22:26,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:26,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 06:22:26,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 06:22:26,207 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 06:22:26,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-18 06:22:26,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:26,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 34 conjunts are in the unsatisfiable core [2023-02-18 06:22:26,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 06:22:26,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-02-18 06:22:26,313 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:26,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2023-02-18 06:22:26,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-18 06:22:26,374 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:26,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 66 [2023-02-18 06:22:26,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 32 [2023-02-18 06:22:26,399 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:26,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 66 [2023-02-18 06:22:26,447 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:26,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 65 [2023-02-18 06:22:26,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 32 [2023-02-18 06:22:26,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 29 [2023-02-18 06:22:26,486 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:26,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 06:22:26,505 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_681 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_681) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) |c_ULTIMATE.start_main_~head~0#1.base|))) (forall ((v_ArrVal_681 (Array Int Int))) (= 1 (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_681) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))))) is different from false [2023-02-18 06:22:26,511 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_681 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem4#1.base| v_ArrVal_681) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) 1)) (forall ((v_ArrVal_681 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem4#1.base| v_ArrVal_681) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) |c_ULTIMATE.start_main_~head~0#1.base|)))) is different from false [2023-02-18 06:22:26,514 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~item~0#1.base|) |c_ULTIMATE.start_main_~item~0#1.offset|))) (and (forall ((v_ArrVal_681 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_681) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) |c_ULTIMATE.start_main_~head~0#1.base|))) (forall ((v_ArrVal_681 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_681) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) 1)))) is different from false [2023-02-18 06:22:26,517 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:26,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 20 [2023-02-18 06:22:26,518 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:26,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 36 [2023-02-18 06:22:26,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-02-18 06:22:26,524 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:26,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2023-02-18 06:22:26,525 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-18 06:22:26,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-02-18 06:22:26,560 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:26,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220353398] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 06:22:26,561 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 06:22:26,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 28 [2023-02-18 06:22:26,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066368761] [2023-02-18 06:22:26,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 06:22:26,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-02-18 06:22:26,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 06:22:26,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-02-18 06:22:26,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=539, Unknown=3, NotChecked=150, Total=812 [2023-02-18 06:22:26,563 INFO L87 Difference]: Start difference. First operand 201 states and 218 transitions. Second operand has 29 states, 28 states have (on average 3.642857142857143) internal successors, (102), 29 states have internal predecessors, (102), 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) [2023-02-18 06:22:26,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 06:22:26,958 INFO L93 Difference]: Finished difference Result 248 states and 269 transitions. [2023-02-18 06:22:26,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-02-18 06:22:26,959 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.642857142857143) internal successors, (102), 29 states have internal predecessors, (102), 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 44 [2023-02-18 06:22:26,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 06:22:26,959 INFO L225 Difference]: With dead ends: 248 [2023-02-18 06:22:26,959 INFO L226 Difference]: Without dead ends: 248 [2023-02-18 06:22:26,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 71 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=186, Invalid=753, Unknown=3, NotChecked=180, Total=1122 [2023-02-18 06:22:26,960 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 487 mSDsluCounter, 920 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 1007 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 494 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 06:22:26,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [487 Valid, 1007 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 818 Invalid, 0 Unknown, 494 Unchecked, 0.3s Time] [2023-02-18 06:22:26,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2023-02-18 06:22:26,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 224. [2023-02-18 06:22:26,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 192 states have (on average 1.3125) internal successors, (252), 223 states have internal predecessors, (252), 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) [2023-02-18 06:22:26,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 252 transitions. [2023-02-18 06:22:26,964 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 252 transitions. Word has length 44 [2023-02-18 06:22:26,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 06:22:26,964 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 252 transitions. [2023-02-18 06:22:26,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.642857142857143) internal successors, (102), 29 states have internal predecessors, (102), 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) [2023-02-18 06:22:26,964 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 252 transitions. [2023-02-18 06:22:26,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-02-18 06:22:26,964 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 06:22:26,964 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 06:22:26,987 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-18 06:22:27,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 06:22:27,165 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr65REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-02-18 06:22:27,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 06:22:27,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1588995559, now seen corresponding path program 1 times [2023-02-18 06:22:27,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 06:22:27,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057673395] [2023-02-18 06:22:27,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:27,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 06:22:27,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:27,376 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:27,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 06:22:27,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057673395] [2023-02-18 06:22:27,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057673395] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 06:22:27,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237010436] [2023-02-18 06:22:27,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:27,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 06:22:27,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 06:22:27,395 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 06:22:27,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-18 06:22:27,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:27,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 46 conjunts are in the unsatisfiable core [2023-02-18 06:22:27,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 06:22:27,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-02-18 06:22:27,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-02-18 06:22:27,527 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:27,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2023-02-18 06:22:27,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-18 06:22:27,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-18 06:22:27,580 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:27,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 30 [2023-02-18 06:22:27,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-02-18 06:22:27,585 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:27,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 43 [2023-02-18 06:22:27,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2023-02-18 06:22:27,605 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:27,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 51 [2023-02-18 06:22:27,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-02-18 06:22:27,651 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:27,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 42 [2023-02-18 06:22:27,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-02-18 06:22:27,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-02-18 06:22:27,679 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:27,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 06:22:27,746 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_762 (Array Int Int)) (v_ArrVal_761 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_761) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 4) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_762) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))) (forall ((v_ArrVal_761 (Array Int Int))) (<= 0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_761) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))) is different from false [2023-02-18 06:22:27,750 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_761 (Array Int Int))) (<= 0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem4#1.base| v_ArrVal_761) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) (forall ((v_ArrVal_762 (Array Int Int)) (v_ArrVal_761 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem4#1.base| v_ArrVal_761) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 4) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem4#1.base| v_ArrVal_762) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))))) is different from false [2023-02-18 06:22:27,812 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:27,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 38 [2023-02-18 06:22:27,814 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:27,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 30 [2023-02-18 06:22:27,816 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:27,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 55 [2023-02-18 06:22:27,820 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:27,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 81 [2023-02-18 06:22:27,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2023-02-18 06:22:27,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 58 [2023-02-18 06:22:27,832 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:27,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2023-02-18 06:22:27,833 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-18 06:22:27,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2023-02-18 06:22:27,863 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:27,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 95 [2023-02-18 06:22:27,906 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:27,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1237010436] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 06:22:27,906 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 06:22:27,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 10] total 29 [2023-02-18 06:22:27,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140172431] [2023-02-18 06:22:27,907 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 06:22:27,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-02-18 06:22:27,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 06:22:27,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-02-18 06:22:27,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=658, Unknown=11, NotChecked=106, Total=870 [2023-02-18 06:22:27,908 INFO L87 Difference]: Start difference. First operand 224 states and 252 transitions. Second operand has 30 states, 29 states have (on average 4.482758620689655) internal successors, (130), 30 states have internal predecessors, (130), 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) [2023-02-18 06:22:28,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 06:22:28,441 INFO L93 Difference]: Finished difference Result 247 states and 268 transitions. [2023-02-18 06:22:28,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-02-18 06:22:28,441 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 4.482758620689655) internal successors, (130), 30 states have internal predecessors, (130), 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 44 [2023-02-18 06:22:28,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 06:22:28,442 INFO L225 Difference]: With dead ends: 247 [2023-02-18 06:22:28,442 INFO L226 Difference]: Without dead ends: 247 [2023-02-18 06:22:28,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=319, Invalid=1318, Unknown=11, NotChecked=158, Total=1806 [2023-02-18 06:22:28,443 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 802 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 1157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 281 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-18 06:22:28,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 899 Invalid, 1157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 836 Invalid, 0 Unknown, 281 Unchecked, 0.4s Time] [2023-02-18 06:22:28,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2023-02-18 06:22:28,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 224. [2023-02-18 06:22:28,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 192 states have (on average 1.3072916666666667) internal successors, (251), 223 states have internal predecessors, (251), 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) [2023-02-18 06:22:28,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 251 transitions. [2023-02-18 06:22:28,446 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 251 transitions. Word has length 44 [2023-02-18 06:22:28,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 06:22:28,446 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 251 transitions. [2023-02-18 06:22:28,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 4.482758620689655) internal successors, (130), 30 states have internal predecessors, (130), 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) [2023-02-18 06:22:28,446 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 251 transitions. [2023-02-18 06:22:28,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-02-18 06:22:28,446 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 06:22:28,446 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 06:22:28,452 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-18 06:22:28,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-02-18 06:22:28,647 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-02-18 06:22:28,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 06:22:28,647 INFO L85 PathProgramCache]: Analyzing trace with hash -64101254, now seen corresponding path program 1 times [2023-02-18 06:22:28,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 06:22:28,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073561769] [2023-02-18 06:22:28,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:28,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 06:22:28,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:28,684 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-02-18 06:22:28,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 06:22:28,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073561769] [2023-02-18 06:22:28,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073561769] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 06:22:28,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 06:22:28,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 06:22:28,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543103892] [2023-02-18 06:22:28,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 06:22:28,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 06:22:28,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 06:22:28,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 06:22:28,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 06:22:28,688 INFO L87 Difference]: Start difference. First operand 224 states and 251 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2023-02-18 06:22:28,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 06:22:28,706 INFO L93 Difference]: Finished difference Result 298 states and 331 transitions. [2023-02-18 06:22:28,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 06:22:28,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 44 [2023-02-18 06:22:28,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 06:22:28,707 INFO L225 Difference]: With dead ends: 298 [2023-02-18 06:22:28,707 INFO L226 Difference]: Without dead ends: 298 [2023-02-18 06:22:28,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 06:22:28,708 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 64 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 06:22:28,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 282 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 06:22:28,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-02-18 06:22:28,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 242. [2023-02-18 06:22:28,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 210 states have (on average 1.2857142857142858) internal successors, (270), 241 states have internal predecessors, (270), 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) [2023-02-18 06:22:28,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 270 transitions. [2023-02-18 06:22:28,711 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 270 transitions. Word has length 44 [2023-02-18 06:22:28,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 06:22:28,711 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 270 transitions. [2023-02-18 06:22:28,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2023-02-18 06:22:28,711 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 270 transitions. [2023-02-18 06:22:28,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-02-18 06:22:28,711 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 06:22:28,712 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 06:22:28,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-02-18 06:22:28,712 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr69ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-02-18 06:22:28,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 06:22:28,712 INFO L85 PathProgramCache]: Analyzing trace with hash -2014223229, now seen corresponding path program 1 times [2023-02-18 06:22:28,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 06:22:28,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153138820] [2023-02-18 06:22:28,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:28,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 06:22:28,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:28,771 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-18 06:22:28,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 06:22:28,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153138820] [2023-02-18 06:22:28,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153138820] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 06:22:28,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702316977] [2023-02-18 06:22:28,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:28,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 06:22:28,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 06:22:28,773 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 06:22:28,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-18 06:22:28,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:28,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-18 06:22:28,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 06:22:28,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2023-02-18 06:22:28,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-02-18 06:22:28,869 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-18 06:22:28,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 06:22:28,878 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-18 06:22:28,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702316977] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 06:22:28,878 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 06:22:28,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7 [2023-02-18 06:22:28,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92639242] [2023-02-18 06:22:28,878 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 06:22:28,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-18 06:22:28,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 06:22:28,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-18 06:22:28,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-02-18 06:22:28,879 INFO L87 Difference]: Start difference. First operand 242 states and 270 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 06:22:28,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 06:22:28,952 INFO L93 Difference]: Finished difference Result 283 states and 314 transitions. [2023-02-18 06:22:28,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 06:22:28,953 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2023-02-18 06:22:28,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 06:22:28,954 INFO L225 Difference]: With dead ends: 283 [2023-02-18 06:22:28,954 INFO L226 Difference]: Without dead ends: 275 [2023-02-18 06:22:28,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-02-18 06:22:28,954 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 167 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 06:22:28,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 445 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 06:22:28,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2023-02-18 06:22:28,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 269. [2023-02-18 06:22:28,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 237 states have (on average 1.2827004219409284) internal successors, (304), 268 states have internal predecessors, (304), 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) [2023-02-18 06:22:28,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 304 transitions. [2023-02-18 06:22:28,958 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 304 transitions. Word has length 45 [2023-02-18 06:22:28,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 06:22:28,958 INFO L495 AbstractCegarLoop]: Abstraction has 269 states and 304 transitions. [2023-02-18 06:22:28,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 06:22:28,958 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 304 transitions. [2023-02-18 06:22:28,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-02-18 06:22:28,958 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 06:22:28,958 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 06:22:28,979 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-18 06:22:29,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 06:22:29,165 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2023-02-18 06:22:29,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 06:22:29,165 INFO L85 PathProgramCache]: Analyzing trace with hash 164743237, now seen corresponding path program 1 times [2023-02-18 06:22:29,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 06:22:29,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580505202] [2023-02-18 06:22:29,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:29,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 06:22:29,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:29,432 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 06:22:29,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 06:22:29,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580505202] [2023-02-18 06:22:29,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580505202] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 06:22:29,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946310180] [2023-02-18 06:22:29,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 06:22:29,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 06:22:29,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 06:22:29,434 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 06:22:29,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-18 06:22:29,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 06:22:29,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 40 conjunts are in the unsatisfiable core [2023-02-18 06:22:29,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 06:22:29,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-02-18 06:22:29,640 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:29,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2023-02-18 06:22:29,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-18 06:22:29,696 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:29,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 42 [2023-02-18 06:22:29,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2023-02-18 06:22:29,716 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:29,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 42 [2023-02-18 06:22:29,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2023-02-18 06:22:29,737 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:29,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2023-02-18 06:22:29,752 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:29,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 50 [2023-02-18 06:22:29,841 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:29,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 123 treesize of output 123 [2023-02-18 06:22:29,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-02-18 06:22:29,857 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 06:22:29,858 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-18 06:22:29,872 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:29,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 99 treesize of output 117 [2023-02-18 06:22:29,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 36 [2023-02-18 06:22:29,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 36 [2023-02-18 06:22:29,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 43 [2023-02-18 06:22:30,232 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 06:22:30,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 21 select indices, 21 select index equivalence classes, 0 disjoint index pairs (out of 210 index pairs), introduced 28 new quantified variables, introduced 230 case distinctions, treesize of input 862 treesize of output 2658