./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 35987657 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-?-3598765 [2022-07-21 09:25:39,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 09:25:39,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 09:25:39,519 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 09:25:39,519 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 09:25:39,520 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 09:25:39,521 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 09:25:39,523 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 09:25:39,524 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 09:25:39,527 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 09:25:39,528 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 09:25:39,529 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 09:25:39,531 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 09:25:39,532 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 09:25:39,533 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 09:25:39,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 09:25:39,535 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 09:25:39,537 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 09:25:39,540 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 09:25:39,543 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 09:25:39,547 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 09:25:39,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 09:25:39,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 09:25:39,551 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 09:25:39,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 09:25:39,555 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 09:25:39,558 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 09:25:39,558 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 09:25:39,559 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 09:25:39,560 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 09:25:39,561 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 09:25:39,561 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 09:25:39,562 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 09:25:39,563 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 09:25:39,564 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 09:25:39,565 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 09:25:39,565 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 09:25:39,566 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 09:25:39,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 09:25:39,566 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 09:25:39,567 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 09:25:39,568 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 09:25:39,573 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 09:25:39,601 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 09:25:39,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 09:25:39,602 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 09:25:39,602 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 09:25:39,603 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 09:25:39,603 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 09:25:39,603 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 09:25:39,604 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 09:25:39,604 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 09:25:39,605 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 09:25:39,605 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 09:25:39,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 09:25:39,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 09:25:39,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 09:25:39,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 09:25:39,611 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 09:25:39,612 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 09:25:39,612 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 09:25:39,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 09:25:39,612 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 09:25:39,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 09:25:39,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 09:25:39,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 09:25:39,613 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 09:25:39,613 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 09:25:39,614 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 09:25:39,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 09:25:39,614 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 09:25:39,614 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 09:25:39,614 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 09:25:39,615 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6927eb425246c7f19dfd1037a51cb88a604d752602914724eb993d672f39eb9 [2022-07-21 09:25:39,931 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 09:25:39,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 09:25:39,957 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 09:25:39,958 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 09:25:39,961 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 09:25:39,963 INFO L432 ainManager$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 [2022-07-21 09:25:40,027 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/567e7139d/a7040f35af614dd9b1940375bf70f730/FLAG4f409cc2b [2022-07-21 09:25:40,779 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 09:25:40,779 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_n_harness.i [2022-07-21 09:25:40,812 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/567e7139d/a7040f35af614dd9b1940375bf70f730/FLAG4f409cc2b [2022-07-21 09:25:41,043 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/567e7139d/a7040f35af614dd9b1940375bf70f730 [2022-07-21 09:25:41,045 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 09:25:41,047 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 09:25:41,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 09:25:41,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 09:25:41,063 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 09:25:41,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:25:41" (1/1) ... [2022-07-21 09:25:41,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33ea3875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:25:41, skipping insertion in model container [2022-07-21 09:25:41,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:25:41" (1/1) ... [2022-07-21 09:25:41,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 09:25:41,176 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 09:25:41,385 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] [2022-07-21 09:25:41,391 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] [2022-07-21 09:25:41,926 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-21 09:25:41,979 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:25:41,980 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:25:41,981 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:25:41,982 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:25:41,986 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:25:41,996 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:25:41,997 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:25:41,998 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:25:41,999 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:25:42,000 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:25:42,001 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:25:42,001 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:25:42,002 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:25:42,246 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-21 09:25:42,247 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-21 09:25:42,248 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-21 09:25:42,252 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-21 09:25:42,255 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-21 09:25:42,255 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-21 09:25:42,256 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-21 09:25:42,256 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-21 09:25:42,257 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-21 09:25:42,257 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-21 09:25:42,356 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:25:42,361 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:25:42,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 09:25:42,434 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 09:25:42,454 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] [2022-07-21 09:25:42,454 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] [2022-07-21 09:25:42,478 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-21 09:25:42,504 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:25:42,504 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:25:42,505 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:25:42,505 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:25:42,506 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:25:42,511 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:25:42,514 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:25:42,515 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:25:42,522 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:25:42,524 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:25:42,526 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:25:42,527 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:25:42,527 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:25:42,566 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-21 09:25:42,567 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-21 09:25:42,569 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-21 09:25:42,569 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-21 09:25:42,571 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-21 09:25:42,571 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-21 09:25:42,573 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-21 09:25:42,573 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-21 09:25:42,575 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-21 09:25:42,576 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-21 09:25:42,607 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:25:42,611 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:25:42,650 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 09:25:42,903 INFO L208 MainTranslator]: Completed translation [2022-07-21 09:25:42,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:25:42 WrapperNode [2022-07-21 09:25:42,904 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 09:25:42,905 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 09:25:42,905 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 09:25:42,905 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 09:25:42,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:25:42" (1/1) ... [2022-07-21 09:25:42,980 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:25:42" (1/1) ... [2022-07-21 09:25:43,047 INFO L137 Inliner]: procedures = 691, calls = 1685, calls flagged for inlining = 51, calls inlined = 9, statements flattened = 664 [2022-07-21 09:25:43,047 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 09:25:43,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 09:25:43,048 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 09:25:43,048 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 09:25:43,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:25:42" (1/1) ... [2022-07-21 09:25:43,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:25:42" (1/1) ... [2022-07-21 09:25:43,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:25:42" (1/1) ... [2022-07-21 09:25:43,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:25:42" (1/1) ... [2022-07-21 09:25:43,087 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:25:42" (1/1) ... [2022-07-21 09:25:43,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:25:42" (1/1) ... [2022-07-21 09:25:43,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:25:42" (1/1) ... [2022-07-21 09:25:43,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 09:25:43,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 09:25:43,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 09:25:43,105 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 09:25:43,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:25:42" (1/1) ... [2022-07-21 09:25:43,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 09:25:43,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:25:43,149 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) [2022-07-21 09:25:43,165 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 [2022-07-21 09:25:43,189 INFO L130 BoogieDeclarations]: Found specification of procedure memmove_impl [2022-07-21 09:25:43,190 INFO L138 BoogieDeclarations]: Found implementation of procedure memmove_impl [2022-07-21 09:25:43,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 09:25:43,191 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-07-21 09:25:43,191 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-07-21 09:25:43,192 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-07-21 09:25:43,192 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-07-21 09:25:43,192 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-07-21 09:25:43,193 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-07-21 09:25:43,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 09:25:43,193 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-07-21 09:25:43,193 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-07-21 09:25:43,193 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-21 09:25:43,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-21 09:25:43,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 09:25:43,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 09:25:43,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 09:25:43,194 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_front_n [2022-07-21 09:25:43,195 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_front_n [2022-07-21 09:25:43,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 09:25:43,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 09:25:43,196 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-07-21 09:25:43,196 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-07-21 09:25:43,196 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-07-21 09:25:43,196 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-07-21 09:25:43,196 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-07-21 09:25:43,196 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-07-21 09:25:43,196 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-07-21 09:25:43,197 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-07-21 09:25:43,197 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 09:25:43,197 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 09:25:43,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 09:25:43,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 09:25:43,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 09:25:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-07-21 09:25:43,198 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-07-21 09:25:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-07-21 09:25:43,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-07-21 09:25:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 09:25:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure my_memmove [2022-07-21 09:25:43,199 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memmove [2022-07-21 09:25:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-07-21 09:25:43,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-07-21 09:25:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 09:25:43,577 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 09:25:43,602 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 09:25:44,403 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 09:25:44,414 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 09:25:44,414 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 09:25:44,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:25:44 BoogieIcfgContainer [2022-07-21 09:25:44,416 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 09:25:44,417 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 09:25:44,417 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 09:25:44,419 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 09:25:44,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 09:25:41" (1/3) ... [2022-07-21 09:25:44,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fdb3f51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:25:44, skipping insertion in model container [2022-07-21 09:25:44,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:25:42" (2/3) ... [2022-07-21 09:25:44,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fdb3f51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:25:44, skipping insertion in model container [2022-07-21 09:25:44,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:25:44" (3/3) ... [2022-07-21 09:25:44,422 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_pop_front_n_harness.i [2022-07-21 09:25:44,433 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 09:25:44,434 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 09:25:44,486 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 09:25:44,495 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@2642f5a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7041f1d8 [2022-07-21 09:25:44,495 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 09:25:44,501 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) [2022-07-21 09:25:44,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-21 09:25:44,511 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:25:44,516 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] [2022-07-21 09:25:44,516 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:25:44,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:25:44,521 INFO L85 PathProgramCache]: Analyzing trace with hash 931255937, now seen corresponding path program 1 times [2022-07-21 09:25:44,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:25:44,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148577130] [2022-07-21 09:25:44,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:25:44,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:25:44,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:25:44,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:25:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:25:45,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:25:45,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:25:45,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 09:25:45,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:25:45,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:25:45,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:25:45,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-21 09:25:45,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:25:45,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 09:25:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:25:45,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 09:25:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:25:45,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 09:25:45,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:25:45,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-21 09:25:45,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:25:45,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 09:25:45,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:25:45,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 09:25:45,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:25:45,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 09:25:45,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:25:45,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-21 09:25:45,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:25:45,192 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-07-21 09:25:45,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:25:45,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148577130] [2022-07-21 09:25:45,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148577130] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:25:45,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:25:45,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 09:25:45,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253090489] [2022-07-21 09:25:45,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:25:45,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 09:25:45,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:25:45,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 09:25:45,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-21 09:25:45,232 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) [2022-07-21 09:25:45,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:25:45,702 INFO L93 Difference]: Finished difference Result 369 states and 548 transitions. [2022-07-21 09:25:45,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 09:25:45,704 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 [2022-07-21 09:25:45,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:25:45,722 INFO L225 Difference]: With dead ends: 369 [2022-07-21 09:25:45,722 INFO L226 Difference]: Without dead ends: 194 [2022-07-21 09:25:45,729 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 [2022-07-21 09:25:45,732 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 [2022-07-21 09:25:45,737 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] [2022-07-21 09:25:45,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-07-21 09:25:45,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 160. [2022-07-21 09:25:45,789 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) [2022-07-21 09:25:45,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 206 transitions. [2022-07-21 09:25:45,794 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 206 transitions. Word has length 84 [2022-07-21 09:25:45,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:25:45,794 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 206 transitions. [2022-07-21 09:25:45,795 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) [2022-07-21 09:25:45,795 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 206 transitions. [2022-07-21 09:25:45,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-21 09:25:45,803 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:25:45,804 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] [2022-07-21 09:25:45,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 09:25:45,804 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:25:45,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:25:45,805 INFO L85 PathProgramCache]: Analyzing trace with hash -732092419, now seen corresponding path program 1 times [2022-07-21 09:25:45,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:25:45,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271173409] [2022-07-21 09:25:45,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:25:45,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:25:45,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:25:45,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:25:45,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:25:46,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:25:46,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:25:46,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 09:25:46,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:25:46,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:25:46,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:25:46,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-21 09:25:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:25:46,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 09:25:46,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:25:46,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 09:25:46,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:25:46,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 09:25:46,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:25:46,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-21 09:25:46,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:25:46,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 09:25:46,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:25:46,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 09:25:46,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:25:46,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 09:25:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:25:46,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-21 09:25:46,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:25:46,188 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-21 09:25:46,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:25:46,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271173409] [2022-07-21 09:25:46,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271173409] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:25:46,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268198030] [2022-07-21 09:25:46,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:25:46,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:25:46,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:25:46,191 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) [2022-07-21 09:25:46,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 09:25:46,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:25:46,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 2136 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-21 09:25:46,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:25:46,717 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-21 09:25:46,718 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:25:46,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268198030] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:25:46,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:25:46,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2022-07-21 09:25:46,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478159875] [2022-07-21 09:25:46,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:25:46,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 09:25:46,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:25:46,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 09:25:46,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-07-21 09:25:46,721 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) [2022-07-21 09:25:46,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:25:46,973 INFO L93 Difference]: Finished difference Result 285 states and 377 transitions. [2022-07-21 09:25:46,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 09:25:46,974 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 [2022-07-21 09:25:46,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:25:46,979 INFO L225 Difference]: With dead ends: 285 [2022-07-21 09:25:46,979 INFO L226 Difference]: Without dead ends: 162 [2022-07-21 09:25:46,980 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 [2022-07-21 09:25:46,981 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, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 09:25:46,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 604 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 09:25:46,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-07-21 09:25:47,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2022-07-21 09:25:47,005 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) [2022-07-21 09:25:47,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 214 transitions. [2022-07-21 09:25:47,006 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 214 transitions. Word has length 84 [2022-07-21 09:25:47,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:25:47,007 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 214 transitions. [2022-07-21 09:25:47,007 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) [2022-07-21 09:25:47,007 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 214 transitions. [2022-07-21 09:25:47,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-21 09:25:47,009 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:25:47,009 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] [2022-07-21 09:25:47,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-21 09:25:47,223 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 [2022-07-21 09:25:47,224 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:25:47,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:25:47,224 INFO L85 PathProgramCache]: Analyzing trace with hash 681912055, now seen corresponding path program 1 times [2022-07-21 09:25:47,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:25:47,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808834899] [2022-07-21 09:25:47,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:25:47,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:25:47,304 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:25:47,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1405721207] [2022-07-21 09:25:47,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:25:47,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:25:47,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:25:47,316 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) [2022-07-21 09:25:47,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-21 09:25:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:25:47,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 2277 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 09:25:47,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:25:47,812 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-07-21 09:25:47,813 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:25:47,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:25:47,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808834899] [2022-07-21 09:25:47,813 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:25:47,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405721207] [2022-07-21 09:25:47,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1405721207] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:25:47,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:25:47,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 09:25:47,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354039000] [2022-07-21 09:25:47,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:25:47,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 09:25:47,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:25:47,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 09:25:47,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-21 09:25:47,816 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) [2022-07-21 09:25:48,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:25:48,158 INFO L93 Difference]: Finished difference Result 277 states and 368 transitions. [2022-07-21 09:25:48,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 09:25:48,158 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 [2022-07-21 09:25:48,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:25:48,160 INFO L225 Difference]: With dead ends: 277 [2022-07-21 09:25:48,160 INFO L226 Difference]: Without dead ends: 162 [2022-07-21 09:25:48,161 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 [2022-07-21 09:25:48,162 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 [2022-07-21 09:25:48,164 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] [2022-07-21 09:25:48,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-07-21 09:25:48,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2022-07-21 09:25:48,190 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) [2022-07-21 09:25:48,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 211 transitions. [2022-07-21 09:25:48,193 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 211 transitions. Word has length 99 [2022-07-21 09:25:48,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:25:48,194 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 211 transitions. [2022-07-21 09:25:48,194 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) [2022-07-21 09:25:48,194 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 211 transitions. [2022-07-21 09:25:48,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-21 09:25:48,198 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:25:48,199 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] [2022-07-21 09:25:48,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-21 09:25:48,422 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 [2022-07-21 09:25:48,423 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:25:48,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:25:48,423 INFO L85 PathProgramCache]: Analyzing trace with hash -364128269, now seen corresponding path program 2 times [2022-07-21 09:25:48,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:25:48,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6373480] [2022-07-21 09:25:48,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:25:48,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:25:48,500 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:25:48,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [108587412] [2022-07-21 09:25:48,501 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 09:25:48,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:25:48,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:25:48,502 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) [2022-07-21 09:25:48,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-21 09:25:49,065 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-21 09:25:49,065 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 09:25:49,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 2418 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-21 09:25:49,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:25:49,175 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-07-21 09:25:49,176 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:25:49,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:25:49,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6373480] [2022-07-21 09:25:49,176 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:25:49,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108587412] [2022-07-21 09:25:49,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [108587412] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:25:49,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:25:49,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 09:25:49,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855007426] [2022-07-21 09:25:49,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:25:49,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 09:25:49,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:25:49,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 09:25:49,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-21 09:25:49,179 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) [2022-07-21 09:25:49,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:25:49,633 INFO L93 Difference]: Finished difference Result 274 states and 360 transitions. [2022-07-21 09:25:49,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 09:25:49,634 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 [2022-07-21 09:25:49,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:25:49,635 INFO L225 Difference]: With dead ends: 274 [2022-07-21 09:25:49,635 INFO L226 Difference]: Without dead ends: 162 [2022-07-21 09:25:49,636 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 [2022-07-21 09:25:49,637 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, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 09:25:49,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 1019 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 09:25:49,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-07-21 09:25:49,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2022-07-21 09:25:49,648 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) [2022-07-21 09:25:49,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 209 transitions. [2022-07-21 09:25:49,651 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 209 transitions. Word has length 114 [2022-07-21 09:25:49,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:25:49,653 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 209 transitions. [2022-07-21 09:25:49,653 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) [2022-07-21 09:25:49,653 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 209 transitions. [2022-07-21 09:25:49,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-07-21 09:25:49,656 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:25:49,656 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] [2022-07-21 09:25:49,687 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-21 09:25:49,883 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 [2022-07-21 09:25:49,884 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:25:49,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:25:49,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1183711671, now seen corresponding path program 1 times [2022-07-21 09:25:49,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:25:49,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497235639] [2022-07-21 09:25:49,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:25:49,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:25:49,944 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:25:49,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [18041156] [2022-07-21 09:25:49,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:25:49,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:25:49,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:25:49,946 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) [2022-07-21 09:25:49,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-21 09:25:50,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:25:50,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 2700 conjuncts, 296 conjunts are in the unsatisfiable core [2022-07-21 09:25:50,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:25:50,943 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 [2022-07-21 09:25:51,285 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 [2022-07-21 09:25:51,550 INFO L356 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-07-21 09:25:51,550 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 [2022-07-21 09:25:51,758 INFO L356 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-07-21 09:25:51,758 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 [2022-07-21 09:26:20,870 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 [2022-07-21 09:26:20,954 INFO L356 Elim1Store]: treesize reduction 129, result has 28.7 percent of original size [2022-07-21 09:26:20,955 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 [2022-07-21 09:26:25,782 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 09:26:25,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:26:25,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:26:25,785 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 34 [2022-07-21 09:26:25,828 INFO L356 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2022-07-21 09:26:25,829 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 25 [2022-07-21 09:27:10,939 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 42 proven. 114 refuted. 4 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-21 09:27:10,939 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 09:27:21,725 WARN L233 SmtUtils]: Spent 6.25s on a formula simplification that was a NOOP. DAG size: 81 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-21 09:27:28,059 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((|v_aws_array_list_is_valid_~#required_size~0.base_14| Int)) (let ((.cse0 (let ((.cse1 (select |c_#memory_int| c_aws_array_list_length_~list.base))) (* (select .cse1 (+ c_aws_array_list_length_~list.offset 16)) (select .cse1 (+ c_aws_array_list_length_~list.offset 24)))))) (<= (mod .cse0 18446744073709551616) (mod (select (select (store |c_#memory_int| |v_aws_array_list_is_valid_~#required_size~0.base_14| (store (select |c_#memory_int| |v_aws_array_list_is_valid_~#required_size~0.base_14|) 0 .cse0)) c_aws_array_list_length_~list.base) (+ c_aws_array_list_length_~list.offset 8)) 18446744073709551616)))) (forall ((|v_aws_array_list_is_valid_~#required_size~0.base_14| Int)) (let ((.cse4 (+ c_aws_array_list_length_~list.offset 24))) (let ((.cse2 (let ((.cse5 (select |c_#memory_int| c_aws_array_list_length_~list.base))) (* (select .cse5 (+ c_aws_array_list_length_~list.offset 16)) (select .cse5 .cse4))))) (let ((.cse3 (select (store |c_#memory_int| |v_aws_array_list_is_valid_~#required_size~0.base_14| (store (select |c_#memory_int| |v_aws_array_list_is_valid_~#required_size~0.base_14|) 0 .cse2)) c_aws_array_list_length_~list.base))) (or (not (<= (mod .cse2 18446744073709551616) (mod (select .cse3 (+ c_aws_array_list_length_~list.offset 8)) 18446744073709551616))) (not (= (mod (select .cse3 .cse4) 18446744073709551616) 0)))))))) is different from false [2022-07-21 09:27:28,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:27:28,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497235639] [2022-07-21 09:27:28,065 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:27:28,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18041156] [2022-07-21 09:27:28,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18041156] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:27:28,065 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:27:28,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58] total 58 [2022-07-21 09:27:28,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286634943] [2022-07-21 09:27:28,066 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-21 09:27:28,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-07-21 09:27:28,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:27:28,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-07-21 09:27:28,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=3428, Unknown=43, NotChecked=118, Total=3782 [2022-07-21 09:27:28,071 INFO L87 Difference]: Start difference. First operand 162 states and 209 transitions. Second operand has 58 states, 48 states have (on average 1.9375) internal successors, (93), 44 states have internal predecessors, (93), 17 states have call successors, (23), 10 states have call predecessors, (23), 16 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) [2022-07-21 09:28:10,060 WARN L233 SmtUtils]: Spent 7.36s on a formula simplification. DAG size of input: 90 DAG size of output: 69 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-21 09:28:12,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:28:12,240 INFO L93 Difference]: Finished difference Result 237 states and 314 transitions. [2022-07-21 09:28:12,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-07-21 09:28:12,241 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 48 states have (on average 1.9375) internal successors, (93), 44 states have internal predecessors, (93), 17 states have call successors, (23), 10 states have call predecessors, (23), 16 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) Word has length 144 [2022-07-21 09:28:12,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:28:12,245 INFO L225 Difference]: With dead ends: 237 [2022-07-21 09:28:12,245 INFO L226 Difference]: Without dead ends: 231 [2022-07-21 09:28:12,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 83 SyntacticMatches, 8 SemanticMatches, 82 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2081 ImplicationChecksByTransitivity, 114.5s TimeCoverageRelationStatistics Valid=374, Invalid=6372, Unknown=64, NotChecked=162, Total=6972 [2022-07-21 09:28:12,248 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 81 mSDsluCounter, 2652 mSDsCounter, 0 mSdLazyCounter, 1658 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 2837 SdHoareTripleChecker+Invalid, 4502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2786 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-21 09:28:12,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 2837 Invalid, 4502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1658 Invalid, 0 Unknown, 2786 Unchecked, 1.4s Time] [2022-07-21 09:28:12,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-07-21 09:28:12,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 223. [2022-07-21 09:28:12,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 136 states have (on average 1.1691176470588236) internal successors, (159), 142 states have internal predecessors, (159), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (76), 56 states have call predecessors, (76), 58 states have call successors, (76) [2022-07-21 09:28:12,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 297 transitions. [2022-07-21 09:28:12,267 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 297 transitions. Word has length 144 [2022-07-21 09:28:12,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:28:12,268 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 297 transitions. [2022-07-21 09:28:12,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 48 states have (on average 1.9375) internal successors, (93), 44 states have internal predecessors, (93), 17 states have call successors, (23), 10 states have call predecessors, (23), 16 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) [2022-07-21 09:28:12,269 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 297 transitions. [2022-07-21 09:28:12,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-07-21 09:28:12,270 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:28:12,271 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, 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, 1, 1, 1, 1, 1, 1] [2022-07-21 09:28:12,306 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-21 09:28:12,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:28:12,491 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:28:12,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:28:12,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1736110152, now seen corresponding path program 1 times [2022-07-21 09:28:12,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:28:12,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763303929] [2022-07-21 09:28:12,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:28:12,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:28:12,571 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:28:12,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1754942801] [2022-07-21 09:28:12,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:28:12,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:28:12,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:28:12,573 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:28:12,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-21 09:28:13,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:28:13,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 2747 conjuncts, 31 conjunts are in the unsatisfiable core [2022-07-21 09:28:13,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:28:13,144 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-21 09:28:13,144 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:28:13,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:28:13,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763303929] [2022-07-21 09:28:13,145 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:28:13,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754942801] [2022-07-21 09:28:13,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754942801] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:28:13,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:28:13,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 09:28:13,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618715239] [2022-07-21 09:28:13,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:28:13,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 09:28:13,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:28:13,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 09:28:13,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-21 09:28:13,147 INFO L87 Difference]: Start difference. First operand 223 states and 297 transitions. Second operand has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 9 states have internal predecessors, (84), 3 states have call successors, (23), 2 states have call predecessors, (23), 6 states have return successors, (21), 5 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-21 09:28:13,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:28:13,356 INFO L93 Difference]: Finished difference Result 360 states and 494 transitions. [2022-07-21 09:28:13,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 09:28:13,356 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 9 states have internal predecessors, (84), 3 states have call successors, (23), 2 states have call predecessors, (23), 6 states have return successors, (21), 5 states have call predecessors, (21), 3 states have call successors, (21) Word has length 162 [2022-07-21 09:28:13,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:28:13,358 INFO L225 Difference]: With dead ends: 360 [2022-07-21 09:28:13,359 INFO L226 Difference]: Without dead ends: 232 [2022-07-21 09:28:13,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-07-21 09:28:13,360 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 11 mSDsluCounter, 2060 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2273 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 09:28:13,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2273 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 09:28:13,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2022-07-21 09:28:13,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2022-07-21 09:28:13,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 144 states have (on average 1.1805555555555556) internal successors, (170), 150 states have internal predecessors, (170), 62 states have call successors, (62), 24 states have call predecessors, (62), 25 states have return successors, (87), 57 states have call predecessors, (87), 58 states have call successors, (87) [2022-07-21 09:28:13,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 319 transitions. [2022-07-21 09:28:13,382 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 319 transitions. Word has length 162 [2022-07-21 09:28:13,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:28:13,384 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 319 transitions. [2022-07-21 09:28:13,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 9 states have internal predecessors, (84), 3 states have call successors, (23), 2 states have call predecessors, (23), 6 states have return successors, (21), 5 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-21 09:28:13,384 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 319 transitions. [2022-07-21 09:28:13,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-07-21 09:28:13,387 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:28:13,387 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, 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] [2022-07-21 09:28:13,414 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-07-21 09:28:13,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:28:13,612 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:28:13,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:28:13,612 INFO L85 PathProgramCache]: Analyzing trace with hash 790684661, now seen corresponding path program 1 times [2022-07-21 09:28:13,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:28:13,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71828331] [2022-07-21 09:28:13,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:28:13,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:28:13,695 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:28:13,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [268425779] [2022-07-21 09:28:13,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:28:13,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:28:13,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:28:13,696 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:28:13,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-21 09:28:14,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:28:14,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 2695 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 09:28:14,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:28:14,180 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-07-21 09:28:14,180 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:28:14,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:28:14,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71828331] [2022-07-21 09:28:14,181 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:28:14,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268425779] [2022-07-21 09:28:14,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268425779] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:28:14,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:28:14,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 09:28:14,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277211940] [2022-07-21 09:28:14,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:28:14,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 09:28:14,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:28:14,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 09:28:14,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 09:28:14,184 INFO L87 Difference]: Start difference. First operand 232 states and 319 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2022-07-21 09:28:14,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:28:14,215 INFO L93 Difference]: Finished difference Result 389 states and 567 transitions. [2022-07-21 09:28:14,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 09:28:14,216 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 144 [2022-07-21 09:28:14,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:28:14,218 INFO L225 Difference]: With dead ends: 389 [2022-07-21 09:28:14,218 INFO L226 Difference]: Without dead ends: 242 [2022-07-21 09:28:14,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 09:28:14,220 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 7 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 09:28:14,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 610 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 09:28:14,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-07-21 09:28:14,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 236. [2022-07-21 09:28:14,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 148 states have (on average 1.1756756756756757) internal successors, (174), 154 states have internal predecessors, (174), 62 states have call successors, (62), 24 states have call predecessors, (62), 25 states have return successors, (87), 57 states have call predecessors, (87), 58 states have call successors, (87) [2022-07-21 09:28:14,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 323 transitions. [2022-07-21 09:28:14,239 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 323 transitions. Word has length 144 [2022-07-21 09:28:14,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:28:14,240 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 323 transitions. [2022-07-21 09:28:14,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2022-07-21 09:28:14,240 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 323 transitions. [2022-07-21 09:28:14,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-07-21 09:28:14,242 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:28:14,242 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] [2022-07-21 09:28:14,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-21 09:28:14,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:28:14,468 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:28:14,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:28:14,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1850338375, now seen corresponding path program 1 times [2022-07-21 09:28:14,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:28:14,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638224708] [2022-07-21 09:28:14,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:28:14,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:28:14,522 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:28:14,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [749958607] [2022-07-21 09:28:14,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:28:14,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:28:14,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:28:14,524 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:28:14,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-21 09:28:14,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:28:14,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 2705 conjuncts, 116 conjunts are in the unsatisfiable core [2022-07-21 09:28:14,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:28:15,198 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 [2022-07-21 09:28:15,201 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 [2022-07-21 09:28:15,584 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_744 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_744) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_743 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_743) |c_#memory_$Pointer$.base|)))) is different from true [2022-07-21 09:28:15,928 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-21 09:28:15,928 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-07-21 09:28:15,946 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-21 09:28:15,946 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-07-21 09:28:16,132 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 09:28:16,133 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 37 [2022-07-21 09:28:16,140 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 09:28:16,142 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 09:28:16,142 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 20 [2022-07-21 09:28:16,179 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 113 proven. 23 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-07-21 09:28:16,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 09:28:17,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:28:17,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638224708] [2022-07-21 09:28:17,106 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:28:17,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749958607] [2022-07-21 09:28:17,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [749958607] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:28:17,106 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:28:17,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2022-07-21 09:28:17,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405737095] [2022-07-21 09:28:17,107 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-21 09:28:17,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-07-21 09:28:17,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:28:17,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-07-21 09:28:17,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1323, Unknown=44, NotChecked=74, Total=1560 [2022-07-21 09:28:17,108 INFO L87 Difference]: Start difference. First operand 236 states and 323 transitions. Second operand has 27 states, 24 states have (on average 3.0833333333333335) internal successors, (74), 24 states have internal predecessors, (74), 11 states have call successors, (22), 6 states have call predecessors, (22), 8 states have return successors, (19), 9 states have call predecessors, (19), 11 states have call successors, (19) [2022-07-21 09:28:19,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:28:19,041 INFO L93 Difference]: Finished difference Result 415 states and 585 transitions. [2022-07-21 09:28:19,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-07-21 09:28:19,041 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 24 states have (on average 3.0833333333333335) internal successors, (74), 24 states have internal predecessors, (74), 11 states have call successors, (22), 6 states have call predecessors, (22), 8 states have return successors, (19), 9 states have call predecessors, (19), 11 states have call successors, (19) Word has length 144 [2022-07-21 09:28:19,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:28:19,043 INFO L225 Difference]: With dead ends: 415 [2022-07-21 09:28:19,044 INFO L226 Difference]: Without dead ends: 276 [2022-07-21 09:28:19,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 171 SyntacticMatches, 8 SemanticMatches, 56 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 634 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=266, Invalid=2875, Unknown=55, NotChecked=110, Total=3306 [2022-07-21 09:28:19,046 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 155 mSDsluCounter, 1408 mSDsCounter, 0 mSdLazyCounter, 1719 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 1577 SdHoareTripleChecker+Invalid, 2479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 685 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-21 09:28:19,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 1577 Invalid, 2479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1719 Invalid, 0 Unknown, 685 Unchecked, 1.3s Time] [2022-07-21 09:28:19,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2022-07-21 09:28:19,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 262. [2022-07-21 09:28:19,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 165 states have (on average 1.1575757575757575) internal successors, (191), 172 states have internal predecessors, (191), 67 states have call successors, (67), 28 states have call predecessors, (67), 29 states have return successors, (105), 61 states have call predecessors, (105), 63 states have call successors, (105) [2022-07-21 09:28:19,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 363 transitions. [2022-07-21 09:28:19,067 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 363 transitions. Word has length 144 [2022-07-21 09:28:19,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:28:19,067 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 363 transitions. [2022-07-21 09:28:19,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 24 states have (on average 3.0833333333333335) internal successors, (74), 24 states have internal predecessors, (74), 11 states have call successors, (22), 6 states have call predecessors, (22), 8 states have return successors, (19), 9 states have call predecessors, (19), 11 states have call successors, (19) [2022-07-21 09:28:19,068 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 363 transitions. [2022-07-21 09:28:19,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-07-21 09:28:19,071 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:28:19,071 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, 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] [2022-07-21 09:28:19,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-21 09:28:19,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:28:19,285 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:28:19,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:28:19,286 INFO L85 PathProgramCache]: Analyzing trace with hash 915893085, now seen corresponding path program 1 times [2022-07-21 09:28:19,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:28:19,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709861519] [2022-07-21 09:28:19,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:28:19,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:28:19,369 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:28:19,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1228561046] [2022-07-21 09:28:19,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:28:19,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:28:19,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:28:19,371 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:28:19,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-21 09:28:19,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:28:19,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 2704 conjuncts, 31 conjunts are in the unsatisfiable core [2022-07-21 09:28:19,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:28:19,951 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-07-21 09:28:19,951 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:28:19,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:28:19,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709861519] [2022-07-21 09:28:19,951 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:28:19,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228561046] [2022-07-21 09:28:19,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228561046] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:28:19,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:28:19,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-21 09:28:19,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123632658] [2022-07-21 09:28:19,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:28:19,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 09:28:19,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:28:19,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 09:28:19,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-07-21 09:28:19,953 INFO L87 Difference]: Start difference. First operand 262 states and 363 transitions. Second operand has 13 states, 11 states have (on average 6.545454545454546) internal successors, (72), 10 states have internal predecessors, (72), 4 states have call successors, (21), 2 states have call predecessors, (21), 6 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) [2022-07-21 09:28:20,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:28:20,206 INFO L93 Difference]: Finished difference Result 410 states and 576 transitions. [2022-07-21 09:28:20,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 09:28:20,207 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.545454545454546) internal successors, (72), 10 states have internal predecessors, (72), 4 states have call successors, (21), 2 states have call predecessors, (21), 6 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) Word has length 150 [2022-07-21 09:28:20,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:28:20,209 INFO L225 Difference]: With dead ends: 410 [2022-07-21 09:28:20,209 INFO L226 Difference]: Without dead ends: 265 [2022-07-21 09:28:20,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-07-21 09:28:20,211 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 12 mSDsluCounter, 2256 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2469 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 09:28:20,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2469 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 09:28:20,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-07-21 09:28:20,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 262. [2022-07-21 09:28:20,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 165 states have (on average 1.1575757575757575) internal successors, (191), 172 states have internal predecessors, (191), 67 states have call successors, (67), 28 states have call predecessors, (67), 29 states have return successors, (101), 61 states have call predecessors, (101), 63 states have call successors, (101) [2022-07-21 09:28:20,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 359 transitions. [2022-07-21 09:28:20,229 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 359 transitions. Word has length 150 [2022-07-21 09:28:20,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:28:20,229 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 359 transitions. [2022-07-21 09:28:20,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 6.545454545454546) internal successors, (72), 10 states have internal predecessors, (72), 4 states have call successors, (21), 2 states have call predecessors, (21), 6 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) [2022-07-21 09:28:20,230 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 359 transitions. [2022-07-21 09:28:20,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-07-21 09:28:20,231 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:28:20,232 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, 1, 1, 1, 1, 1, 1] [2022-07-21 09:28:20,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-21 09:28:20,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-07-21 09:28:20,447 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:28:20,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:28:20,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1694541256, now seen corresponding path program 1 times [2022-07-21 09:28:20,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:28:20,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064368633] [2022-07-21 09:28:20,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:28:20,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:28:20,516 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:28:20,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1663832934] [2022-07-21 09:28:20,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:28:20,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:28:20,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:28:20,519 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:28:20,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-21 09:28:21,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:28:21,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 2739 conjuncts, 91 conjunts are in the unsatisfiable core [2022-07-21 09:28:21,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:28:21,085 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 [2022-07-21 09:28:21,239 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-07-21 09:28:21,281 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 24 treesize of output 15 [2022-07-21 09:28:25,368 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-07-21 09:28:25,368 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 32 [2022-07-21 09:28:25,428 INFO L356 Elim1Store]: treesize reduction 30, result has 34.8 percent of original size [2022-07-21 09:28:25,428 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 33 [2022-07-21 09:28:25,558 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_1041 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_1041))) is different from true [2022-07-21 09:28:33,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:28:33,787 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 27 treesize of output 27 [2022-07-21 09:28:33,791 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 89 proven. 4 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-07-21 09:28:33,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 09:28:34,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:28:34,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064368633] [2022-07-21 09:28:34,058 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:28:34,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663832934] [2022-07-21 09:28:34,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663832934] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:28:34,058 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:28:34,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2022-07-21 09:28:34,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006431851] [2022-07-21 09:28:34,058 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-21 09:28:34,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-21 09:28:34,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:28:34,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-21 09:28:34,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=386, Unknown=19, NotChecked=40, Total=506 [2022-07-21 09:28:34,060 INFO L87 Difference]: Start difference. First operand 262 states and 359 transitions. Second operand has 22 states, 20 states have (on average 3.3) internal successors, (66), 18 states have internal predecessors, (66), 8 states have call successors, (21), 7 states have call predecessors, (21), 8 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) [2022-07-21 09:28:38,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:28:38,675 INFO L93 Difference]: Finished difference Result 441 states and 607 transitions. [2022-07-21 09:28:38,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-21 09:28:38,675 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 3.3) internal successors, (66), 18 states have internal predecessors, (66), 8 states have call successors, (21), 7 states have call predecessors, (21), 8 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) Word has length 150 [2022-07-21 09:28:38,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:28:38,677 INFO L225 Difference]: With dead ends: 441 [2022-07-21 09:28:38,678 INFO L226 Difference]: Without dead ends: 271 [2022-07-21 09:28:38,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 220 SyntacticMatches, 5 SemanticMatches, 26 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 16.6s TimeCoverageRelationStatistics Valid=86, Invalid=590, Unknown=30, NotChecked=50, Total=756 [2022-07-21 09:28:38,679 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 190 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 1999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1374 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 09:28:38,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 919 Invalid, 1999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 453 Invalid, 0 Unknown, 1374 Unchecked, 0.4s Time] [2022-07-21 09:28:38,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-07-21 09:28:38,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 270. [2022-07-21 09:28:38,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 170 states have (on average 1.1529411764705881) internal successors, (196), 178 states have internal predecessors, (196), 68 states have call successors, (68), 29 states have call predecessors, (68), 31 states have return successors, (105), 62 states have call predecessors, (105), 64 states have call successors, (105) [2022-07-21 09:28:38,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 369 transitions. [2022-07-21 09:28:38,697 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 369 transitions. Word has length 150 [2022-07-21 09:28:38,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:28:38,697 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 369 transitions. [2022-07-21 09:28:38,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 3.3) internal successors, (66), 18 states have internal predecessors, (66), 8 states have call successors, (21), 7 states have call predecessors, (21), 8 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) [2022-07-21 09:28:38,698 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 369 transitions. [2022-07-21 09:28:38,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-07-21 09:28:38,700 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:28:38,700 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:28:38,731 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-21 09:28:38,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-21 09:28:38,915 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:28:38,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:28:38,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1480663417, now seen corresponding path program 1 times [2022-07-21 09:28:38,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:28:38,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886778505] [2022-07-21 09:28:38,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:28:38,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:28:38,984 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:28:38,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1294479399] [2022-07-21 09:28:38,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:28:38,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:28:38,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:28:38,986 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:28:38,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-21 09:28:39,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:28:39,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 2752 conjuncts, 48 conjunts are in the unsatisfiable core [2022-07-21 09:28:39,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:28:39,530 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-07-21 09:28:39,663 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-07-21 09:28:39,663 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 21 [2022-07-21 09:28:41,782 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_1206 Int)) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_1206)))) is different from true [2022-07-21 09:28:59,536 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-07-21 09:28:59,536 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:28:59,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:28:59,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886778505] [2022-07-21 09:28:59,537 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:28:59,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294479399] [2022-07-21 09:28:59,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294479399] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:28:59,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:28:59,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-21 09:28:59,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962310446] [2022-07-21 09:28:59,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:28:59,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-21 09:28:59,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:28:59,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-21 09:28:59,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=255, Unknown=7, NotChecked=32, Total=342 [2022-07-21 09:28:59,539 INFO L87 Difference]: Start difference. First operand 270 states and 369 transitions. Second operand has 19 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 16 states have internal predecessors, (66), 8 states have call successors, (22), 4 states have call predecessors, (22), 7 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2022-07-21 09:29:00,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:29:00,182 INFO L93 Difference]: Finished difference Result 488 states and 677 transitions. [2022-07-21 09:29:00,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-21 09:29:00,183 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 16 states have internal predecessors, (66), 8 states have call successors, (22), 4 states have call predecessors, (22), 7 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) Word has length 155 [2022-07-21 09:29:00,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:29:00,185 INFO L225 Difference]: With dead ends: 488 [2022-07-21 09:29:00,185 INFO L226 Difference]: Without dead ends: 318 [2022-07-21 09:29:00,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 134 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 20.0s TimeCoverageRelationStatistics Valid=66, Invalid=393, Unknown=7, NotChecked=40, Total=506 [2022-07-21 09:29:00,187 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 141 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 1801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1048 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 09:29:00,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 979 Invalid, 1801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 675 Invalid, 0 Unknown, 1048 Unchecked, 0.5s Time] [2022-07-21 09:29:00,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2022-07-21 09:29:00,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 269. [2022-07-21 09:29:00,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 170 states have (on average 1.1529411764705881) internal successors, (196), 177 states have internal predecessors, (196), 67 states have call successors, (67), 30 states have call predecessors, (67), 31 states have return successors, (100), 61 states have call predecessors, (100), 63 states have call successors, (100) [2022-07-21 09:29:00,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 363 transitions. [2022-07-21 09:29:00,205 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 363 transitions. Word has length 155 [2022-07-21 09:29:00,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:29:00,206 INFO L495 AbstractCegarLoop]: Abstraction has 269 states and 363 transitions. [2022-07-21 09:29:00,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.8823529411764706) internal successors, (66), 16 states have internal predecessors, (66), 8 states have call successors, (22), 4 states have call predecessors, (22), 7 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2022-07-21 09:29:00,206 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 363 transitions. [2022-07-21 09:29:00,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-07-21 09:29:00,208 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:29:00,208 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, 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] [2022-07-21 09:29:00,235 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-07-21 09:29:00,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-21 09:29:00,423 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:29:00,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:29:00,424 INFO L85 PathProgramCache]: Analyzing trace with hash -545923538, now seen corresponding path program 1 times [2022-07-21 09:29:00,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:29:00,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694658542] [2022-07-21 09:29:00,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:29:00,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:29:00,492 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:29:00,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [520498158] [2022-07-21 09:29:00,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:29:00,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:29:00,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:29:00,494 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:29:00,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-21 09:29:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:29:00,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 2744 conjuncts, 96 conjunts are in the unsatisfiable core [2022-07-21 09:29:00,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:29:03,404 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_1362 Int) (v_ArrVal_1365 Int)) (and (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_1365)) |c_#memory_$Pointer$.base|) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_1362)) |c_#memory_$Pointer$.offset|))) is different from true [2022-07-21 09:29:31,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:29:31,323 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 09:29:31,324 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-07-21 09:29:31,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:29:31,328 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 09:29:31,330 INFO L356 Elim1Store]: treesize reduction 2, result has 33.3 percent of original size [2022-07-21 09:29:31,330 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 1 [2022-07-21 09:29:31,332 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 133 proven. 3 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-07-21 09:29:31,332 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 09:29:33,574 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1378 Int) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_68| Int) (v_ArrVal_1379 Int)) (let ((.cse0 (+ 32 |c_aws_array_list_pop_front_n_~list#1.offset|))) (or (not (= (select (select (store |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_68| (store (select |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_68|) 0 v_ArrVal_1379)) |c_aws_array_list_pop_front_n_~list#1.base|) .cse0) 0)) (not (= (select (select (store |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_68| (store (select |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_68|) 0 v_ArrVal_1378)) |c_aws_array_list_pop_front_n_~list#1.base|) .cse0) 0))))) is different from false [2022-07-21 09:29:33,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:29:33,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694658542] [2022-07-21 09:29:33,576 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:29:33,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520498158] [2022-07-21 09:29:33,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520498158] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:29:33,576 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:29:33,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2022-07-21 09:29:33,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456033724] [2022-07-21 09:29:33,576 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-21 09:29:33,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-07-21 09:29:33,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:29:33,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-07-21 09:29:33,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=287, Unknown=11, NotChecked=70, Total=420 [2022-07-21 09:29:33,578 INFO L87 Difference]: Start difference. First operand 269 states and 363 transitions. Second operand has 20 states, 18 states have (on average 4.444444444444445) internal successors, (80), 18 states have internal predecessors, (80), 8 states have call successors, (23), 5 states have call predecessors, (23), 6 states have return successors, (20), 7 states have call predecessors, (20), 8 states have call successors, (20) [2022-07-21 09:29:55,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:29:55,030 INFO L93 Difference]: Finished difference Result 508 states and 723 transitions. [2022-07-21 09:29:55,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-21 09:29:55,031 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 4.444444444444445) internal successors, (80), 18 states have internal predecessors, (80), 8 states have call successors, (23), 5 states have call predecessors, (23), 6 states have return successors, (20), 7 states have call predecessors, (20), 8 states have call successors, (20) Word has length 152 [2022-07-21 09:29:55,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:29:55,033 INFO L225 Difference]: With dead ends: 508 [2022-07-21 09:29:55,033 INFO L226 Difference]: Without dead ends: 353 [2022-07-21 09:29:55,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 197 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 52.3s TimeCoverageRelationStatistics Valid=128, Invalid=671, Unknown=21, NotChecked=110, Total=930 [2022-07-21 09:29:55,035 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 163 mSDsluCounter, 1270 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 2730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1253 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-21 09:29:55,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 1519 Invalid, 2730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1404 Invalid, 0 Unknown, 1253 Unchecked, 1.1s Time] [2022-07-21 09:29:55,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-07-21 09:29:55,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 293. [2022-07-21 09:29:55,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 187 states have (on average 1.1550802139037433) internal successors, (216), 196 states have internal predecessors, (216), 71 states have call successors, (71), 33 states have call predecessors, (71), 34 states have return successors, (128), 63 states have call predecessors, (128), 67 states have call successors, (128) [2022-07-21 09:29:55,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 415 transitions. [2022-07-21 09:29:55,056 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 415 transitions. Word has length 152 [2022-07-21 09:29:55,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:29:55,056 INFO L495 AbstractCegarLoop]: Abstraction has 293 states and 415 transitions. [2022-07-21 09:29:55,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 4.444444444444445) internal successors, (80), 18 states have internal predecessors, (80), 8 states have call successors, (23), 5 states have call predecessors, (23), 6 states have return successors, (20), 7 states have call predecessors, (20), 8 states have call successors, (20) [2022-07-21 09:29:55,057 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 415 transitions. [2022-07-21 09:29:55,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-07-21 09:29:55,059 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:29:55,059 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, 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] [2022-07-21 09:29:55,090 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-07-21 09:29:55,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-21 09:29:55,275 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:29:55,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:29:55,276 INFO L85 PathProgramCache]: Analyzing trace with hash -169805283, now seen corresponding path program 1 times [2022-07-21 09:29:55,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:29:55,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578339333] [2022-07-21 09:29:55,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:29:55,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:29:55,325 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:29:55,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1401502002] [2022-07-21 09:29:55,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:29:55,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:29:55,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:29:55,327 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:29:55,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-21 09:29:55,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:29:55,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 2705 conjuncts, 92 conjunts are in the unsatisfiable core [2022-07-21 09:29:55,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:29:58,205 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_1514 Int) (v_ArrVal_1515 Int)) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_1514))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_1515)) |c_#memory_$Pointer$.offset|))) is different from true