./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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_capacity_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 d58b6cbe3dbcae2c6bf4b35286cc82fa39ed49d435b7e41930b97647d699f843 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 21:49:54,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 21:49:54,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 21:49:54,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 21:49:54,374 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 21:49:54,375 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 21:49:54,377 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 21:49:54,384 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 21:49:54,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 21:49:54,390 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 21:49:54,391 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 21:49:54,393 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 21:49:54,393 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 21:49:54,395 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 21:49:54,396 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 21:49:54,398 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 21:49:54,399 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 21:49:54,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 21:49:54,402 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 21:49:54,406 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 21:49:54,408 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 21:49:54,408 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 21:49:54,409 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 21:49:54,410 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 21:49:54,411 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 21:49:54,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 21:49:54,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 21:49:54,420 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 21:49:54,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 21:49:54,421 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 21:49:54,422 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 21:49:54,422 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 21:49:54,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 21:49:54,424 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 21:49:54,425 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 21:49:54,426 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 21:49:54,426 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 21:49:54,426 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 21:49:54,427 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 21:49:54,427 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 21:49:54,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 21:49:54,429 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 21:49:54,431 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-19 21:49:54,458 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 21:49:54,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 21:49:54,459 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 21:49:54,459 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 21:49:54,460 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 21:49:54,460 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 21:49:54,461 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 21:49:54,461 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 21:49:54,461 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 21:49:54,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 21:49:54,462 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 21:49:54,462 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 21:49:54,463 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 21:49:54,463 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 21:49:54,463 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 21:49:54,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 21:49:54,463 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 21:49:54,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 21:49:54,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 21:49:54,465 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 21:49:54,465 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 21:49:54,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 21:49:54,465 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 21:49:54,465 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 21:49:54,466 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 21:49:54,466 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 21:49:54,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 21:49:54,466 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 21:49:54,466 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 21:49:54,466 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 21:49:54,467 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d58b6cbe3dbcae2c6bf4b35286cc82fa39ed49d435b7e41930b97647d699f843 [2022-07-19 21:49:54,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 21:49:54,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 21:49:54,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 21:49:54,724 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 21:49:54,725 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 21:49:54,726 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i [2022-07-19 21:49:54,775 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/322cc4582/5894c92488554dc19544cc01033525f8/FLAG03468967c [2022-07-19 21:49:55,371 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 21:49:55,372 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i [2022-07-19 21:49:55,423 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/322cc4582/5894c92488554dc19544cc01033525f8/FLAG03468967c [2022-07-19 21:49:55,543 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/322cc4582/5894c92488554dc19544cc01033525f8 [2022-07-19 21:49:55,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 21:49:55,547 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 21:49:55,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 21:49:55,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 21:49:55,553 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 21:49:55,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:49:55" (1/1) ... [2022-07-19 21:49:55,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36ce47d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:49:55, skipping insertion in model container [2022-07-19 21:49:55,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:49:55" (1/1) ... [2022-07-19 21:49:55,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 21:49:55,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 21:49:55,805 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_capacity_harness.i[4497,4510] [2022-07-19 21:49:55,810 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_capacity_harness.i[4557,4570] [2022-07-19 21:49:56,334 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-19 21:49:56,388 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:56,388 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:56,389 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:56,389 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:56,390 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:56,404 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:56,404 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:56,405 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:56,406 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:56,407 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:56,408 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:56,408 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:56,409 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:56,609 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-19 21:49:56,611 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-19 21:49:56,611 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-19 21:49:56,612 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-19 21:49:56,613 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-19 21:49:56,614 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-19 21:49:56,615 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-19 21:49:56,615 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-19 21:49:56,616 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-19 21:49:56,616 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-19 21:49:56,746 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:56,751 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:56,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 21:49:56,852 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 21:49:56,876 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_capacity_harness.i[4497,4510] [2022-07-19 21:49:56,877 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_capacity_harness.i[4557,4570] [2022-07-19 21:49:56,901 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-19 21:49:56,911 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:56,911 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:56,912 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:56,912 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:56,913 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:56,917 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:56,918 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:56,918 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:56,919 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:56,929 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:56,934 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:56,935 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:56,935 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:56,976 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-19 21:49:56,977 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-19 21:49:56,979 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-19 21:49:56,979 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-19 21:49:56,980 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-19 21:49:56,981 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-19 21:49:56,982 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-19 21:49:56,982 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-19 21:49:56,982 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-19 21:49:56,985 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-19 21:49:57,030 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:57,034 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:49:57,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 21:49:57,265 INFO L208 MainTranslator]: Completed translation [2022-07-19 21:49:57,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:49:57 WrapperNode [2022-07-19 21:49:57,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 21:49:57,267 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 21:49:57,267 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 21:49:57,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 21:49:57,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:49:57" (1/1) ... [2022-07-19 21:49:57,342 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:49:57" (1/1) ... [2022-07-19 21:49:57,407 INFO L137 Inliner]: procedures = 690, calls = 1687, calls flagged for inlining = 53, calls inlined = 9, statements flattened = 616 [2022-07-19 21:49:57,408 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 21:49:57,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 21:49:57,409 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 21:49:57,409 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 21:49:57,416 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:49:57" (1/1) ... [2022-07-19 21:49:57,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:49:57" (1/1) ... [2022-07-19 21:49:57,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:49:57" (1/1) ... [2022-07-19 21:49:57,430 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:49:57" (1/1) ... [2022-07-19 21:49:57,455 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:49:57" (1/1) ... [2022-07-19 21:49:57,457 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:49:57" (1/1) ... [2022-07-19 21:49:57,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:49:57" (1/1) ... [2022-07-19 21:49:57,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 21:49:57,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 21:49:57,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 21:49:57,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 21:49:57,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:49:57" (1/1) ... [2022-07-19 21:49:57,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 21:49:57,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:49:57,517 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) [2022-07-19 21:49:57,531 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 [2022-07-19 21:49:57,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 21:49:57,568 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-07-19 21:49:57,569 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-07-19 21:49:57,569 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-07-19 21:49:57,569 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-07-19 21:49:57,570 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-07-19 21:49:57,570 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-07-19 21:49:57,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 21:49:57,570 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-07-19 21:49:57,570 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-07-19 21:49:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-19 21:49:57,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-19 21:49:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-19 21:49:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 21:49:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-19 21:49:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 21:49:57,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 21:49:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-07-19 21:49:57,572 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-07-19 21:49:57,573 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-07-19 21:49:57,573 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-07-19 21:49:57,573 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-07-19 21:49:57,574 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-07-19 21:49:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-19 21:49:57,574 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-19 21:49:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 21:49:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-19 21:49:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-19 21:49:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-07-19 21:49:57,575 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-07-19 21:49:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-07-19 21:49:57,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-07-19 21:49:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 21:49:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-07-19 21:49:57,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-07-19 21:49:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 21:49:57,845 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 21:49:57,847 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 21:49:58,518 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 21:49:58,528 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 21:49:58,528 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 21:49:58,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:49:58 BoogieIcfgContainer [2022-07-19 21:49:58,531 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 21:49:58,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 21:49:58,534 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 21:49:58,537 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 21:49:58,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 09:49:55" (1/3) ... [2022-07-19 21:49:58,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@512765d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:49:58, skipping insertion in model container [2022-07-19 21:49:58,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:49:57" (2/3) ... [2022-07-19 21:49:58,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@512765d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:49:58, skipping insertion in model container [2022-07-19 21:49:58,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:49:58" (3/3) ... [2022-07-19 21:49:58,540 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_capacity_harness.i [2022-07-19 21:49:58,552 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 21:49:58,553 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 21:49:58,684 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 21:49:58,694 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@3a2c3b38, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4eb704a8 [2022-07-19 21:49:58,694 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 21:49:58,698 INFO L276 IsEmpty]: Start isEmpty. Operand has 122 states, 77 states have (on average 1.1948051948051948) internal successors, (92), 78 states have internal predecessors, (92), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-07-19 21:49:58,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-19 21:49:58,709 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 21:49:58,710 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 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] [2022-07-19 21:49:58,710 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 21:49:58,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:49:58,715 INFO L85 PathProgramCache]: Analyzing trace with hash -817942521, now seen corresponding path program 1 times [2022-07-19 21:49:58,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:49:58,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97794180] [2022-07-19 21:49:58,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:49:58,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:49:59,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:59,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 21:49:59,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:59,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 21:49:59,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:59,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 21:49:59,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:59,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 21:49:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:59,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-19 21:49:59,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:59,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-19 21:49:59,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:59,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 21:49:59,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:59,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 21:49:59,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:59,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 21:49:59,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:59,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-19 21:49:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:59,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-19 21:49:59,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:59,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-19 21:49:59,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:49:59,412 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-07-19 21:49:59,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:49:59,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97794180] [2022-07-19 21:49:59,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97794180] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:49:59,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:49:59,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 21:49:59,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599157715] [2022-07-19 21:49:59,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:49:59,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 21:49:59,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:49:59,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 21:49:59,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-19 21:49:59,444 INFO L87 Difference]: Start difference. First operand has 122 states, 77 states have (on average 1.1948051948051948) internal successors, (92), 78 states have internal predecessors, (92), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 21:49:59,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 21:49:59,821 INFO L93 Difference]: Finished difference Result 239 states and 325 transitions. [2022-07-19 21:49:59,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 21:49:59,824 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 74 [2022-07-19 21:49:59,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 21:49:59,837 INFO L225 Difference]: With dead ends: 239 [2022-07-19 21:49:59,838 INFO L226 Difference]: Without dead ends: 119 [2022-07-19 21:49:59,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-19 21:49:59,847 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 33 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 21:49:59,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 194 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 21:49:59,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-07-19 21:49:59,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 117. [2022-07-19 21:49:59,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 73 states have (on average 1.178082191780822) internal successors, (86), 74 states have internal predecessors, (86), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-07-19 21:49:59,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 147 transitions. [2022-07-19 21:49:59,888 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 147 transitions. Word has length 74 [2022-07-19 21:49:59,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 21:49:59,888 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 147 transitions. [2022-07-19 21:49:59,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 21:49:59,889 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 147 transitions. [2022-07-19 21:49:59,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-19 21:49:59,892 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 21:49:59,892 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 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] [2022-07-19 21:49:59,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 21:49:59,892 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 21:49:59,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:49:59,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1310312895, now seen corresponding path program 1 times [2022-07-19 21:49:59,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:49:59,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770004598] [2022-07-19 21:49:59,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:49:59,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:49:59,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:50:00,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 21:50:00,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:50:00,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 21:50:00,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:50:00,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 21:50:00,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:50:00,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 21:50:00,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:50:00,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-19 21:50:00,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:50:00,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-19 21:50:00,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:50:00,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 21:50:00,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:50:00,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 21:50:00,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:50:00,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 21:50:00,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:50:00,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-19 21:50:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:50:00,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-19 21:50:00,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:50:00,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-19 21:50:00,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:50:00,211 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-07-19 21:50:00,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:50:00,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770004598] [2022-07-19 21:50:00,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770004598] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 21:50:00,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960470684] [2022-07-19 21:50:00,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:50:00,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:50:00,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:50:00,219 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) [2022-07-19 21:50:00,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-19 21:50:00,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:50:00,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 2056 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-19 21:50:00,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 21:50:00,712 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-19 21:50:00,712 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 21:50:00,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960470684] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:50:00,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 21:50:00,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2022-07-19 21:50:00,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650771887] [2022-07-19 21:50:00,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:50:00,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 21:50:00,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:50:00,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 21:50:00,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-07-19 21:50:00,715 INFO L87 Difference]: Start difference. First operand 117 states and 147 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-19 21:50:00,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 21:50:00,903 INFO L93 Difference]: Finished difference Result 199 states and 254 transitions. [2022-07-19 21:50:00,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 21:50:00,904 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 74 [2022-07-19 21:50:00,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 21:50:00,908 INFO L225 Difference]: With dead ends: 199 [2022-07-19 21:50:00,908 INFO L226 Difference]: Without dead ends: 119 [2022-07-19 21:50:00,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-07-19 21:50:00,910 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 158 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 21:50:00,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 401 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 21:50:00,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-07-19 21:50:00,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2022-07-19 21:50:00,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 74 states have (on average 1.1756756756756757) internal successors, (87), 76 states have internal predecessors, (87), 31 states have call successors, (31), 12 states have call predecessors, (31), 13 states have return successors, (32), 30 states have call predecessors, (32), 30 states have call successors, (32) [2022-07-19 21:50:00,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 150 transitions. [2022-07-19 21:50:00,925 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 150 transitions. Word has length 74 [2022-07-19 21:50:00,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 21:50:00,926 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 150 transitions. [2022-07-19 21:50:00,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-19 21:50:00,926 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 150 transitions. [2022-07-19 21:50:00,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-19 21:50:00,929 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 21:50:00,929 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 21:50:00,953 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-19 21:50:01,143 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 [2022-07-19 21:50:01,143 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 21:50:01,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:50:01,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1377860737, now seen corresponding path program 1 times [2022-07-19 21:50:01,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:50:01,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105303458] [2022-07-19 21:50:01,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:50:01,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:50:01,204 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 21:50:01,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1130169131] [2022-07-19 21:50:01,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:50:01,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:50:01,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:50:01,207 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) [2022-07-19 21:50:01,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-19 21:50:01,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:50:01,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 2197 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-19 21:50:01,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 21:50:01,665 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-19 21:50:01,666 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 21:50:01,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:50:01,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105303458] [2022-07-19 21:50:01,666 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 21:50:01,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130169131] [2022-07-19 21:50:01,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130169131] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:50:01,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:50:01,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 21:50:01,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363069371] [2022-07-19 21:50:01,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:50:01,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 21:50:01,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:50:01,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 21:50:01,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 21:50:01,671 INFO L87 Difference]: Start difference. First operand 119 states and 150 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-19 21:50:01,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 21:50:01,875 INFO L93 Difference]: Finished difference Result 189 states and 236 transitions. [2022-07-19 21:50:01,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 21:50:01,876 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 89 [2022-07-19 21:50:01,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 21:50:01,881 INFO L225 Difference]: With dead ends: 189 [2022-07-19 21:50:01,881 INFO L226 Difference]: Without dead ends: 117 [2022-07-19 21:50:01,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-07-19 21:50:01,885 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 170 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 21:50:01,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 487 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 21:50:01,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-07-19 21:50:01,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2022-07-19 21:50:01,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 73 states have (on average 1.1643835616438356) internal successors, (85), 74 states have internal predecessors, (85), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-07-19 21:50:01,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 146 transitions. [2022-07-19 21:50:01,907 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 146 transitions. Word has length 89 [2022-07-19 21:50:01,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 21:50:01,907 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 146 transitions. [2022-07-19 21:50:01,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-19 21:50:01,908 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 146 transitions. [2022-07-19 21:50:01,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-07-19 21:50:01,914 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 21:50:01,915 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-19 21:50:01,942 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-19 21:50:02,141 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 [2022-07-19 21:50:02,142 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 21:50:02,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:50:02,142 INFO L85 PathProgramCache]: Analyzing trace with hash -355007149, now seen corresponding path program 1 times [2022-07-19 21:50:02,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:50:02,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93408300] [2022-07-19 21:50:02,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:50:02,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:50:02,239 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 21:50:02,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1330974630] [2022-07-19 21:50:02,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:50:02,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:50:02,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:50:02,241 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) [2022-07-19 21:50:02,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-19 21:50:02,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:50:02,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 2479 conjuncts, 256 conjunts are in the unsatisfiable core [2022-07-19 21:50:02,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 21:50:02,839 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 [2022-07-19 21:50:03,239 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 9 treesize of output 3 [2022-07-19 21:50:03,244 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 9 treesize of output 3 [2022-07-19 21:50:03,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 21:50:03,656 INFO L356 Elim1Store]: treesize reduction 44, result has 47.0 percent of original size [2022-07-19 21:50:03,656 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 48 [2022-07-19 21:50:26,749 INFO L356 Elim1Store]: treesize reduction 202, result has 38.6 percent of original size [2022-07-19 21:50:26,749 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 180 treesize of output 321 [2022-07-19 21:53:17,842 INFO L356 Elim1Store]: treesize reduction 34, result has 29.2 percent of original size [2022-07-19 21:53:17,843 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 24 [2022-07-19 21:53:18,066 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 9 [2022-07-19 21:53:18,152 INFO L356 Elim1Store]: treesize reduction 47, result has 17.5 percent of original size [2022-07-19 21:53:18,152 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 16 [2022-07-19 21:53:18,188 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 9 [2022-07-19 21:53:19,880 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 9 [2022-07-19 21:53:20,192 INFO L356 Elim1Store]: treesize reduction 372, result has 13.9 percent of original size [2022-07-19 21:53:20,192 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 3 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 131 treesize of output 275 [2022-07-19 21:53:21,991 INFO L356 Elim1Store]: treesize reduction 277, result has 16.3 percent of original size [2022-07-19 21:53:22,015 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 514589493 treesize of output 514458480