./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_n_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_n_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b6927eb425246c7f19dfd1037a51cb88a604d752602914724eb993d672f39eb9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 22:07:02,923 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 22:07:02,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 22:07:02,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 22:07:02,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 22:07:02,963 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 22:07:02,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 22:07:02,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 22:07:02,971 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 22:07:02,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 22:07:02,977 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 22:07:02,979 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 22:07:02,979 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 22:07:02,980 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 22:07:02,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 22:07:02,985 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 22:07:02,986 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 22:07:02,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 22:07:02,989 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 22:07:02,994 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 22:07:02,996 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 22:07:02,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 22:07:02,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 22:07:02,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 22:07:03,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 22:07:03,003 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 22:07:03,003 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 22:07:03,003 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 22:07:03,004 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 22:07:03,005 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 22:07:03,006 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 22:07:03,006 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 22:07:03,007 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 22:07:03,008 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 22:07:03,008 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 22:07:03,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 22:07:03,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 22:07:03,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 22:07:03,011 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 22:07:03,011 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 22:07:03,012 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 22:07:03,013 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 22:07:03,014 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-22 22:07:03,049 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 22:07:03,049 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 22:07:03,050 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 22:07:03,050 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 22:07:03,050 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 22:07:03,051 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 22:07:03,051 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 22:07:03,051 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 22:07:03,052 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 22:07:03,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 22:07:03,053 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 22:07:03,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 22:07:03,053 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 22:07:03,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 22:07:03,053 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 22:07:03,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 22:07:03,054 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 22:07:03,054 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 22:07:03,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 22:07:03,055 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 22:07:03,055 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 22:07:03,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 22:07:03,056 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 22:07:03,056 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 22:07:03,056 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 22:07:03,056 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 22:07:03,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 22:07:03,056 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 22:07:03,057 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 22:07:03,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 22:07:03,057 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6927eb425246c7f19dfd1037a51cb88a604d752602914724eb993d672f39eb9 [2022-07-22 22:07:03,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 22:07:03,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 22:07:03,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 22:07:03,324 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 22:07:03,327 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 22:07:03,328 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_n_harness.i [2022-07-22 22:07:03,413 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d52cbef00/bc5f9b4543cd4025b9bf6878a431bd21/FLAG3b7ef7b18 [2022-07-22 22:07:04,099 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 22:07:04,099 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_n_harness.i [2022-07-22 22:07:04,134 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d52cbef00/bc5f9b4543cd4025b9bf6878a431bd21/FLAG3b7ef7b18 [2022-07-22 22:07:04,233 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d52cbef00/bc5f9b4543cd4025b9bf6878a431bd21 [2022-07-22 22:07:04,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 22:07:04,236 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 22:07:04,239 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 22:07:04,239 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 22:07:04,243 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 22:07:04,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:07:04" (1/1) ... [2022-07-22 22:07:04,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8b94a74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:07:04, skipping insertion in model container [2022-07-22 22:07:04,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:07:04" (1/1) ... [2022-07-22 22:07:04,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 22:07:04,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 22:07:04,581 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_n_harness.i[4500,4513] [2022-07-22 22:07:04,588 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_n_harness.i[4560,4573] [2022-07-22 22:07:05,120 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-22 22:07:05,173 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:07:05,178 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:07:05,179 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:07:05,180 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:07:05,184 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:07:05,195 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:07:05,196 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:07:05,197 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:07:05,197 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:07:05,199 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:07:05,200 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:07:05,200 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:07:05,200 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:07:05,415 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-22 22:07:05,416 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-22 22:07:05,417 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-22 22:07:05,418 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-22 22:07:05,419 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-22 22:07:05,420 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-22 22:07:05,420 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-22 22:07:05,421 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-22 22:07:05,423 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-22 22:07:05,423 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-22 22:07:05,544 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:07:05,550 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:07:05,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 22:07:05,616 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 22:07:05,627 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_n_harness.i[4500,4513] [2022-07-22 22:07:05,627 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_n_harness.i[4560,4573] [2022-07-22 22:07:05,651 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-22 22:07:05,664 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:07:05,665 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:07:05,665 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:07:05,665 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:07:05,666 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:07:05,672 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:07:05,672 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:07:05,673 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:07:05,673 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:07:05,674 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:07:05,675 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:07:05,675 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:07:05,675 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:07:05,724 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-22 22:07:05,726 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-22 22:07:05,728 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-22 22:07:05,733 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-22 22:07:05,734 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-22 22:07:05,735 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-22 22:07:05,735 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-22 22:07:05,736 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-22 22:07:05,740 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-22 22:07:05,758 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-22 22:07:05,812 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:07:05,821 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:07:05,858 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 22:07:06,048 INFO L208 MainTranslator]: Completed translation [2022-07-22 22:07:06,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:07:06 WrapperNode [2022-07-22 22:07:06,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 22:07:06,051 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 22:07:06,051 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 22:07:06,051 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 22:07:06,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:07:06" (1/1) ... [2022-07-22 22:07:06,149 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:07:06" (1/1) ... [2022-07-22 22:07:06,223 INFO L137 Inliner]: procedures = 691, calls = 1685, calls flagged for inlining = 51, calls inlined = 9, statements flattened = 664 [2022-07-22 22:07:06,224 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 22:07:06,225 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 22:07:06,226 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 22:07:06,226 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 22:07:06,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:07:06" (1/1) ... [2022-07-22 22:07:06,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:07:06" (1/1) ... [2022-07-22 22:07:06,248 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:07:06" (1/1) ... [2022-07-22 22:07:06,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:07:06" (1/1) ... [2022-07-22 22:07:06,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:07:06" (1/1) ... [2022-07-22 22:07:06,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:07:06" (1/1) ... [2022-07-22 22:07:06,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:07:06" (1/1) ... [2022-07-22 22:07:06,324 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 22:07:06,328 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 22:07:06,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 22:07:06,329 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 22:07:06,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:07:06" (1/1) ... [2022-07-22 22:07:06,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 22:07:06,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:07:06,360 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) [2022-07-22 22:07:06,385 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 [2022-07-22 22:07:06,402 INFO L130 BoogieDeclarations]: Found specification of procedure memmove_impl [2022-07-22 22:07:06,402 INFO L138 BoogieDeclarations]: Found implementation of procedure memmove_impl [2022-07-22 22:07:06,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 22:07:06,404 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-07-22 22:07:06,404 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-07-22 22:07:06,404 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-07-22 22:07:06,404 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-07-22 22:07:06,405 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-07-22 22:07:06,405 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-07-22 22:07:06,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 22:07:06,405 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-07-22 22:07:06,405 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-07-22 22:07:06,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-22 22:07:06,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-22 22:07:06,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 22:07:06,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 22:07:06,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-22 22:07:06,406 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_front_n [2022-07-22 22:07:06,407 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_front_n [2022-07-22 22:07:06,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 22:07:06,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 22:07:06,407 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-07-22 22:07:06,407 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-07-22 22:07:06,408 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-07-22 22:07:06,408 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-07-22 22:07:06,408 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-07-22 22:07:06,409 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-07-22 22:07:06,409 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-07-22 22:07:06,409 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-07-22 22:07:06,409 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-22 22:07:06,409 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-22 22:07:06,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 22:07:06,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-22 22:07:06,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-22 22:07:06,410 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-07-22 22:07:06,410 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-07-22 22:07:06,410 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-07-22 22:07:06,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-07-22 22:07:06,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 22:07:06,411 INFO L130 BoogieDeclarations]: Found specification of procedure my_memmove [2022-07-22 22:07:06,411 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memmove [2022-07-22 22:07:06,411 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-07-22 22:07:06,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-07-22 22:07:06,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 22:07:06,701 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 22:07:06,704 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 22:07:07,467 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 22:07:07,479 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 22:07:07,479 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 22:07:07,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 10:07:07 BoogieIcfgContainer [2022-07-22 22:07:07,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 22:07:07,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 22:07:07,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 22:07:07,486 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 22:07:07,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 10:07:04" (1/3) ... [2022-07-22 22:07:07,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28cfdfc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 10:07:07, skipping insertion in model container [2022-07-22 22:07:07,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:07:06" (2/3) ... [2022-07-22 22:07:07,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28cfdfc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 10:07:07, skipping insertion in model container [2022-07-22 22:07:07,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 10:07:07" (3/3) ... [2022-07-22 22:07:07,490 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_pop_front_n_harness.i [2022-07-22 22:07:07,505 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 22:07:07,506 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 22:07:07,570 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 22:07:07,580 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@310c89a8, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@61038959 [2022-07-22 22:07:07,581 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 22:07:07,587 INFO L276 IsEmpty]: Start isEmpty. Operand has 171 states, 104 states have (on average 1.2115384615384615) internal successors, (126), 106 states have internal predecessors, (126), 49 states have call successors, (49), 16 states have call predecessors, (49), 16 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2022-07-22 22:07:07,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-22 22:07:07,601 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:07:07,602 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:07:07,602 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:07:07,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:07:07,609 INFO L85 PathProgramCache]: Analyzing trace with hash 931255937, now seen corresponding path program 1 times [2022-07-22 22:07:07,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:07:07,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822772669] [2022-07-22 22:07:07,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:07:07,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:07:07,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:07:08,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:07:08,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:07:08,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 22:07:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:07:08,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:07:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:07:08,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 22:07:08,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:07:08,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 22:07:08,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:07:08,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-22 22:07:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:07:08,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-22 22:07:08,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:07:08,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 22:07:08,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:07:08,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-22 22:07:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:07:08,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-22 22:07:08,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:07:08,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-22 22:07:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:07:08,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-22 22:07:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:07:08,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-22 22:07:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:07:08,271 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-07-22 22:07:08,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:07:08,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822772669] [2022-07-22 22:07:08,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822772669] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:07:08,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:07:08,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 22:07:08,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886274981] [2022-07-22 22:07:08,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:07:08,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 22:07:08,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:07:08,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 22:07:08,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 22:07:08,305 INFO L87 Difference]: Start difference. First operand has 171 states, 104 states have (on average 1.2115384615384615) internal successors, (126), 106 states have internal predecessors, (126), 49 states have call successors, (49), 16 states have call predecessors, (49), 16 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-22 22:07:08,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:07:08,770 INFO L93 Difference]: Finished difference Result 369 states and 548 transitions. [2022-07-22 22:07:08,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 22:07:08,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 84 [2022-07-22 22:07:08,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:07:08,783 INFO L225 Difference]: With dead ends: 369 [2022-07-22 22:07:08,783 INFO L226 Difference]: Without dead ends: 194 [2022-07-22 22:07:08,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 22:07:08,790 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 121 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 22:07:08,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 252 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 22:07:08,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-07-22 22:07:08,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 160. [2022-07-22 22:07:08,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 95 states have (on average 1.1789473684210525) internal successors, (112), 98 states have internal predecessors, (112), 49 states have call successors, (49), 16 states have call predecessors, (49), 15 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-07-22 22:07:08,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 206 transitions. [2022-07-22 22:07:08,843 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 206 transitions. Word has length 84 [2022-07-22 22:07:08,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:07:08,843 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 206 transitions. [2022-07-22 22:07:08,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-22 22:07:08,843 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 206 transitions. [2022-07-22 22:07:08,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-22 22:07:08,847 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:07:08,847 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:07:08,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 22:07:08,847 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:07:08,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:07:08,848 INFO L85 PathProgramCache]: Analyzing trace with hash -732092419, now seen corresponding path program 1 times [2022-07-22 22:07:08,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:07:08,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086869564] [2022-07-22 22:07:08,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:07:08,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:07:08,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:07:09,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:07:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:07:09,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 22:07:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:07:09,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:07:09,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:07:09,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 22:07:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:07:09,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 22:07:09,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:07:09,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-22 22:07:09,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:07:09,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-22 22:07:09,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:07:09,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 22:07:09,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:07:09,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-22 22:07:09,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:07:09,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-22 22:07:09,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:07:09,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-22 22:07:09,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:07:09,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-22 22:07:09,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:07:09,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-22 22:07:09,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:07:09,184 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-22 22:07:09,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:07:09,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086869564] [2022-07-22 22:07:09,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086869564] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:07:09,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1182243525] [2022-07-22 22:07:09,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:07:09,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:07:09,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:07:09,191 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) [2022-07-22 22:07:09,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 22:07:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:07:09,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 2136 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 22:07:09,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:07:09,830 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-22 22:07:09,830 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:07:09,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1182243525] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:07:09,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:07:09,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2022-07-22 22:07:09,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925292097] [2022-07-22 22:07:09,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:07:09,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 22:07:09,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:07:09,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 22:07:09,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-07-22 22:07:09,834 INFO L87 Difference]: Start difference. First operand 160 states and 206 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-22 22:07:10,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:07:10,032 INFO L93 Difference]: Finished difference Result 285 states and 377 transitions. [2022-07-22 22:07:10,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 22:07:10,033 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 84 [2022-07-22 22:07:10,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:07:10,035 INFO L225 Difference]: With dead ends: 285 [2022-07-22 22:07:10,035 INFO L226 Difference]: Without dead ends: 162 [2022-07-22 22:07:10,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-07-22 22:07:10,037 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 211 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 22:07:10,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 604 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 22:07:10,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-07-22 22:07:10,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2022-07-22 22:07:10,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 96 states have (on average 1.1770833333333333) internal successors, (113), 100 states have internal predecessors, (113), 49 states have call successors, (49), 16 states have call predecessors, (49), 16 states have return successors, (52), 45 states have call predecessors, (52), 45 states have call successors, (52) [2022-07-22 22:07:10,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 214 transitions. [2022-07-22 22:07:10,054 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 214 transitions. Word has length 84 [2022-07-22 22:07:10,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:07:10,054 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 214 transitions. [2022-07-22 22:07:10,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-22 22:07:10,055 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 214 transitions. [2022-07-22 22:07:10,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-22 22:07:10,057 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:07:10,057 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:07:10,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-22 22:07:10,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:07:10,276 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:07:10,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:07:10,276 INFO L85 PathProgramCache]: Analyzing trace with hash 681912055, now seen corresponding path program 1 times [2022-07-22 22:07:10,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:07:10,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652415795] [2022-07-22 22:07:10,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:07:10,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:07:10,343 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:07:10,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1891936710] [2022-07-22 22:07:10,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:07:10,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:07:10,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:07:10,346 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) [2022-07-22 22:07:10,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 22:07:10,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:07:10,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 2277 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 22:07:10,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:07:10,837 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-07-22 22:07:10,837 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:07:10,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:07:10,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652415795] [2022-07-22 22:07:10,838 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:07:10,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891936710] [2022-07-22 22:07:10,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891936710] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:07:10,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:07:10,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 22:07:10,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217149672] [2022-07-22 22:07:10,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:07:10,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 22:07:10,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:07:10,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 22:07:10,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-22 22:07:10,843 INFO L87 Difference]: Start difference. First operand 162 states and 214 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2022-07-22 22:07:11,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:07:11,194 INFO L93 Difference]: Finished difference Result 277 states and 368 transitions. [2022-07-22 22:07:11,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 22:07:11,194 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 99 [2022-07-22 22:07:11,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:07:11,196 INFO L225 Difference]: With dead ends: 277 [2022-07-22 22:07:11,196 INFO L226 Difference]: Without dead ends: 162 [2022-07-22 22:07:11,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-07-22 22:07:11,203 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 225 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 22:07:11,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 803 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 22:07:11,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-07-22 22:07:11,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2022-07-22 22:07:11,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 96 states have (on average 1.1770833333333333) internal successors, (113), 100 states have internal predecessors, (113), 49 states have call successors, (49), 16 states have call predecessors, (49), 16 states have return successors, (49), 45 states have call predecessors, (49), 45 states have call successors, (49) [2022-07-22 22:07:11,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 211 transitions. [2022-07-22 22:07:11,240 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 211 transitions. Word has length 99 [2022-07-22 22:07:11,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:07:11,241 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 211 transitions. [2022-07-22 22:07:11,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2022-07-22 22:07:11,241 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 211 transitions. [2022-07-22 22:07:11,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-22 22:07:11,249 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:07:11,249 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:07:11,282 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-22 22:07:11,463 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,SelfDestructingSolverStorable2 [2022-07-22 22:07:11,463 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:07:11,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:07:11,464 INFO L85 PathProgramCache]: Analyzing trace with hash -364128269, now seen corresponding path program 2 times [2022-07-22 22:07:11,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:07:11,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037182303] [2022-07-22 22:07:11,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:07:11,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:07:11,550 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:07:11,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1007851212] [2022-07-22 22:07:11,553 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 22:07:11,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:07:11,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:07:11,554 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) [2022-07-22 22:07:11,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 22:07:12,140 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 22:07:12,140 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 22:07:12,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 2418 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-22 22:07:12,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:07:12,245 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-07-22 22:07:12,245 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:07:12,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:07:12,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037182303] [2022-07-22 22:07:12,245 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:07:12,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007851212] [2022-07-22 22:07:12,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007851212] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:07:12,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:07:12,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-22 22:07:12,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265886654] [2022-07-22 22:07:12,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:07:12,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-22 22:07:12,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:07:12,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-22 22:07:12,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-22 22:07:12,248 INFO L87 Difference]: Start difference. First operand 162 states and 211 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 8 states have internal predecessors, (46), 5 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2022-07-22 22:07:12,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:07:12,684 INFO L93 Difference]: Finished difference Result 274 states and 360 transitions. [2022-07-22 22:07:12,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-22 22:07:12,684 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 8 states have internal predecessors, (46), 5 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) Word has length 114 [2022-07-22 22:07:12,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:07:12,686 INFO L225 Difference]: With dead ends: 274 [2022-07-22 22:07:12,686 INFO L226 Difference]: Without dead ends: 162 [2022-07-22 22:07:12,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2022-07-22 22:07:12,688 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 227 mSDsluCounter, 874 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 22:07:12,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 1019 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 22:07:12,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-07-22 22:07:12,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2022-07-22 22:07:12,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 96 states have (on average 1.1770833333333333) internal successors, (113), 100 states have internal predecessors, (113), 49 states have call successors, (49), 16 states have call predecessors, (49), 16 states have return successors, (47), 45 states have call predecessors, (47), 45 states have call successors, (47) [2022-07-22 22:07:12,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 209 transitions. [2022-07-22 22:07:12,701 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 209 transitions. Word has length 114 [2022-07-22 22:07:12,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:07:12,701 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 209 transitions. [2022-07-22 22:07:12,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 8 states have internal predecessors, (46), 5 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2022-07-22 22:07:12,702 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 209 transitions. [2022-07-22 22:07:12,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-07-22 22:07:12,703 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:07:12,703 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:07:12,729 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-22 22:07:12,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:07:12,920 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:07:12,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:07:12,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1183711671, now seen corresponding path program 1 times [2022-07-22 22:07:12,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:07:12,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002136042] [2022-07-22 22:07:12,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:07:12,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:07:12,993 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:07:12,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [450536023] [2022-07-22 22:07:12,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:07:12,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:07:12,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:07:12,996 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) [2022-07-22 22:07:13,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-22 22:07:14,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:07:14,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 2700 conjuncts, 296 conjunts are in the unsatisfiable core [2022-07-22 22:07:14,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:07:14,153 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-07-22 22:07:14,494 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 5 [2022-07-22 22:07:14,820 INFO L356 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-07-22 22:07:14,821 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 37 [2022-07-22 22:07:15,053 INFO L356 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-07-22 22:07:15,053 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 37 [2022-07-22 22:07:46,608 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 21 [2022-07-22 22:07:46,705 INFO L356 Elim1Store]: treesize reduction 129, result has 28.7 percent of original size [2022-07-22 22:07:46,705 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 51 treesize of output 85 [2022-07-22 22:07:53,033 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-22 22:07:53,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:07:53,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:07:53,037 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 138 [2022-07-22 22:07:53,112 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-22 22:07:53,112 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 153 treesize of output 199 [2022-07-22 22:07:56,906 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-07-22 22:07:56,907 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 68 [2022-07-22 22:07:56,919 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 17 [2022-07-22 22:07:56,978 INFO L356 Elim1Store]: treesize reduction 24, result has 42.9 percent of original size [2022-07-22 22:07:56,978 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 86 treesize of output 80 [2022-07-22 22:07:57,053 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 15 [2022-07-22 22:07:57,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:07:57,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:07:57,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:07:57,070 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 45 [2022-07-22 22:07:57,306 INFO L356 Elim1Store]: treesize reduction 24, result has 42.9 percent of original size [2022-07-22 22:07:57,306 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 86 treesize of output 80 [2022-07-22 22:07:57,326 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 15 [2022-07-22 22:07:57,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:07:57,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:07:57,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:07:57,598 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 45 [2022-07-22 22:08:39,291 WARN L233 SmtUtils]: Spent 8.97s on a formula simplification that was a NOOP. DAG size: 121 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-22 22:09:19,190 WARN L233 SmtUtils]: Spent 6.63s on a formula simplification that was a NOOP. DAG size: 49 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)