./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 eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_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-?-eb692b5 [2022-07-19 21:53:08,605 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 21:53:08,607 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 21:53:08,644 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 21:53:08,644 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 21:53:08,645 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 21:53:08,648 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 21:53:08,650 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 21:53:08,652 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 21:53:08,657 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 21:53:08,658 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 21:53:08,660 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 21:53:08,660 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 21:53:08,662 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 21:53:08,664 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 21:53:08,667 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 21:53:08,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 21:53:08,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 21:53:08,671 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 21:53:08,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 21:53:08,678 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 21:53:08,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 21:53:08,680 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 21:53:08,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 21:53:08,682 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 21:53:08,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 21:53:08,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 21:53:08,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 21:53:08,692 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 21:53:08,692 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 21:53:08,693 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 21:53:08,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 21:53:08,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 21:53:08,695 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 21:53:08,696 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 21:53:08,697 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 21:53:08,698 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 21:53:08,699 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 21:53:08,699 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 21:53:08,699 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 21:53:08,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 21:53:08,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 21:53:08,703 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-19 21:53:08,748 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 21:53:08,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 21:53:08,749 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 21:53:08,749 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 21:53:08,750 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 21:53:08,750 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 21:53:08,751 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 21:53:08,751 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 21:53:08,751 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 21:53:08,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 21:53:08,752 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 21:53:08,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 21:53:08,753 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 21:53:08,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 21:53:08,753 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 21:53:08,753 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 21:53:08,753 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 21:53:08,754 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 21:53:08,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 21:53:08,755 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 21:53:08,755 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 21:53:08,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 21:53:08,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 21:53:08,756 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 21:53:08,756 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 21:53:08,756 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 21:53:08,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 21:53:08,756 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 21:53:08,757 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 21:53:08,757 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 21:53:08,757 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6927eb425246c7f19dfd1037a51cb88a604d752602914724eb993d672f39eb9 [2022-07-19 21:53:09,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 21:53:09,047 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 21:53:09,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 21:53:09,050 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 21:53:09,051 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 21:53:09,052 INFO L432 ainManager$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 [2022-07-19 21:53:09,114 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f6a1da4b/ddc03d7175a24e9189297f7b6f9f4f45/FLAG23e89a13a [2022-07-19 21:53:09,699 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 21:53:09,700 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_n_harness.i [2022-07-19 21:53:09,734 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f6a1da4b/ddc03d7175a24e9189297f7b6f9f4f45/FLAG23e89a13a [2022-07-19 21:53:09,880 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f6a1da4b/ddc03d7175a24e9189297f7b6f9f4f45 [2022-07-19 21:53:09,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 21:53:09,883 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 21:53:09,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 21:53:09,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 21:53:09,887 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 21:53:09,888 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:53:09" (1/1) ... [2022-07-19 21:53:09,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@df6397a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:53:09, skipping insertion in model container [2022-07-19 21:53:09,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:53:09" (1/1) ... [2022-07-19 21:53:09,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 21:53:09,998 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 21:53:10,170 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] [2022-07-19 21:53:10,175 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] [2022-07-19 21:53:10,698 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-19 21:53:10,756 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:53:10,757 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:53:10,757 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:53:10,758 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:53:10,759 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:53:10,772 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:53:10,773 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:53:10,776 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:53:10,777 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:53:10,778 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:53:10,778 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:53:10,779 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:53:10,779 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:53:10,970 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-19 21:53:10,971 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-19 21:53:10,972 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-19 21:53:10,973 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-19 21:53:10,974 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-19 21:53:10,974 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-19 21:53:10,975 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-19 21:53:10,976 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-19 21:53:10,984 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-19 21:53:10,985 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-19 21:53:11,066 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:53:11,071 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:53:11,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 21:53:11,149 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 21:53:11,170 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] [2022-07-19 21:53:11,172 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] [2022-07-19 21:53:11,204 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-19 21:53:11,230 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:53:11,237 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:53:11,239 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:53:11,240 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:53:11,240 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:53:11,249 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:53:11,249 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:53:11,264 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:53:11,265 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:53:11,266 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:53:11,267 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:53:11,267 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:53:11,268 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:53:11,312 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-19 21:53:11,312 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-19 21:53:11,313 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-19 21:53:11,314 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-19 21:53:11,315 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-19 21:53:11,315 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-19 21:53:11,316 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-19 21:53:11,316 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-19 21:53:11,318 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-19 21:53:11,319 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-19 21:53:11,358 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:53:11,362 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:53:11,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 21:53:11,578 INFO L208 MainTranslator]: Completed translation [2022-07-19 21:53:11,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:53:11 WrapperNode [2022-07-19 21:53:11,579 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 21:53:11,580 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 21:53:11,580 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 21:53:11,580 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 21:53:11,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:53:11" (1/1) ... [2022-07-19 21:53:11,660 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:53:11" (1/1) ... [2022-07-19 21:53:11,714 INFO L137 Inliner]: procedures = 691, calls = 1685, calls flagged for inlining = 51, calls inlined = 9, statements flattened = 664 [2022-07-19 21:53:11,724 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 21:53:11,725 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 21:53:11,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 21:53:11,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 21:53:11,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:53:11" (1/1) ... [2022-07-19 21:53:11,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:53:11" (1/1) ... [2022-07-19 21:53:11,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:53:11" (1/1) ... [2022-07-19 21:53:11,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:53:11" (1/1) ... [2022-07-19 21:53:11,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:53:11" (1/1) ... [2022-07-19 21:53:11,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:53:11" (1/1) ... [2022-07-19 21:53:11,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:53:11" (1/1) ... [2022-07-19 21:53:11,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 21:53:11,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 21:53:11,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 21:53:11,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 21:53:11,822 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:53:11" (1/1) ... [2022-07-19 21:53:11,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 21:53:11,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:53:11,856 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 21:53:11,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 21:53:11,896 INFO L130 BoogieDeclarations]: Found specification of procedure memmove_impl [2022-07-19 21:53:11,897 INFO L138 BoogieDeclarations]: Found implementation of procedure memmove_impl [2022-07-19 21:53:11,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 21:53:11,898 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-07-19 21:53:11,898 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-07-19 21:53:11,899 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-07-19 21:53:11,899 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-07-19 21:53:11,899 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-07-19 21:53:11,899 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-07-19 21:53:11,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 21:53:11,899 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-07-19 21:53:11,899 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-07-19 21:53:11,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-19 21:53:11,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-19 21:53:11,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-19 21:53:11,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 21:53:11,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-19 21:53:11,900 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_front_n [2022-07-19 21:53:11,900 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_front_n [2022-07-19 21:53:11,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 21:53:11,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 21:53:11,901 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-07-19 21:53:11,902 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-07-19 21:53:11,902 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-07-19 21:53:11,902 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-07-19 21:53:11,902 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-07-19 21:53:11,902 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-07-19 21:53:11,903 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-07-19 21:53:11,903 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-07-19 21:53:11,903 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-19 21:53:11,903 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-19 21:53:11,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 21:53:11,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-19 21:53:11,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-19 21:53:11,904 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-07-19 21:53:11,904 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-07-19 21:53:11,904 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-07-19 21:53:11,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-07-19 21:53:11,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 21:53:11,905 INFO L130 BoogieDeclarations]: Found specification of procedure my_memmove [2022-07-19 21:53:11,905 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memmove [2022-07-19 21:53:11,905 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-07-19 21:53:11,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-07-19 21:53:11,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 21:53:12,194 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 21:53:12,196 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 21:53:13,086 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 21:53:13,098 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 21:53:13,098 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 21:53:13,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:53:13 BoogieIcfgContainer [2022-07-19 21:53:13,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 21:53:13,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 21:53:13,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 21:53:13,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 21:53:13,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 09:53:09" (1/3) ... [2022-07-19 21:53:13,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@538dc10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:53:13, skipping insertion in model container [2022-07-19 21:53:13,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:53:11" (2/3) ... [2022-07-19 21:53:13,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@538dc10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:53:13, skipping insertion in model container [2022-07-19 21:53:13,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:53:13" (3/3) ... [2022-07-19 21:53:13,108 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_pop_front_n_harness.i [2022-07-19 21:53:13,120 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 21:53:13,120 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 21:53:13,177 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 21:53:13,182 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@296e8377, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1a50bace [2022-07-19 21:53:13,182 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 21:53:13,186 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) [2022-07-19 21:53:13,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-19 21:53:13,196 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 21:53:13,196 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] [2022-07-19 21:53:13,197 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 21:53:13,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:53:13,201 INFO L85 PathProgramCache]: Analyzing trace with hash 931255937, now seen corresponding path program 1 times [2022-07-19 21:53:13,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:53:13,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800811320] [2022-07-19 21:53:13,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:53:13,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:53:13,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:53:13,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 21:53:13,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:53:13,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 21:53:13,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:53:13,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 21:53:13,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:53:13,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 21:53:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:53:13,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-19 21:53:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:53:13,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-19 21:53:13,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:53:13,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 21:53:13,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:53:13,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 21:53:13,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:53:13,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-19 21:53:13,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:53:13,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-19 21:53:13,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:53:13,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-19 21:53:13,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:53:13,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-19 21:53:13,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:53:13,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-19 21:53:13,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:53:13,890 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-07-19 21:53:13,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:53:13,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800811320] [2022-07-19 21:53:13,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800811320] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:53:13,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:53:13,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 21:53:13,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400703148] [2022-07-19 21:53:13,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:53:13,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 21:53:13,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:53:13,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 21:53:13,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-19 21:53:13,928 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) [2022-07-19 21:53:14,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 21:53:14,474 INFO L93 Difference]: Finished difference Result 369 states and 548 transitions. [2022-07-19 21:53:14,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 21:53:14,478 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 [2022-07-19 21:53:14,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 21:53:14,487 INFO L225 Difference]: With dead ends: 369 [2022-07-19 21:53:14,487 INFO L226 Difference]: Without dead ends: 194 [2022-07-19 21:53:14,496 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 [2022-07-19 21:53:14,498 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 121 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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 [2022-07-19 21:53:14,502 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] [2022-07-19 21:53:14,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-07-19 21:53:14,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 160. [2022-07-19 21:53:14,566 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) [2022-07-19 21:53:14,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 206 transitions. [2022-07-19 21:53:14,571 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 206 transitions. Word has length 84 [2022-07-19 21:53:14,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 21:53:14,571 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 206 transitions. [2022-07-19 21:53:14,572 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) [2022-07-19 21:53:14,572 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 206 transitions. [2022-07-19 21:53:14,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-19 21:53:14,582 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 21:53:14,583 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] [2022-07-19 21:53:14,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 21:53:14,583 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 21:53:14,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:53:14,584 INFO L85 PathProgramCache]: Analyzing trace with hash -732092419, now seen corresponding path program 1 times [2022-07-19 21:53:14,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:53:14,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280939168] [2022-07-19 21:53:14,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:53:14,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:53:14,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:53:14,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 21:53:14,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:53:14,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 21:53:14,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:53:14,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 21:53:14,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:53:14,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 21:53:14,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:53:14,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-19 21:53:14,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:53:14,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-19 21:53:14,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:53:14,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 21:53:14,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:53:14,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 21:53:14,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:53:14,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-19 21:53:14,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:53:14,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-19 21:53:14,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:53:14,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-19 21:53:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:53:14,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-19 21:53:14,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:53:14,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-19 21:53:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:53:14,974 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-19 21:53:14,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:53:14,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280939168] [2022-07-19 21:53:14,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280939168] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 21:53:14,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787685298] [2022-07-19 21:53:14,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:53:14,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:53:14,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:53:14,983 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 21:53:15,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-19 21:53:15,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:53:15,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 2136 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-19 21:53:15,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 21:53:15,485 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-19 21:53:15,485 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 21:53:15,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787685298] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:53:15,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 21:53:15,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2022-07-19 21:53:15,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021151384] [2022-07-19 21:53:15,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:53:15,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 21:53:15,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:53:15,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 21:53:15,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-07-19 21:53:15,488 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) [2022-07-19 21:53:15,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 21:53:15,686 INFO L93 Difference]: Finished difference Result 285 states and 377 transitions. [2022-07-19 21:53:15,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 21:53:15,687 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 [2022-07-19 21:53:15,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 21:53:15,689 INFO L225 Difference]: With dead ends: 285 [2022-07-19 21:53:15,689 INFO L226 Difference]: Without dead ends: 162 [2022-07-19 21:53:15,690 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 [2022-07-19 21:53:15,691 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 [2022-07-19 21:53:15,691 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] [2022-07-19 21:53:15,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-07-19 21:53:15,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2022-07-19 21:53:15,706 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) [2022-07-19 21:53:15,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 214 transitions. [2022-07-19 21:53:15,708 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 214 transitions. Word has length 84 [2022-07-19 21:53:15,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 21:53:15,708 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 214 transitions. [2022-07-19 21:53:15,709 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) [2022-07-19 21:53:15,709 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 214 transitions. [2022-07-19 21:53:15,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-19 21:53:15,713 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 21:53:15,713 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] [2022-07-19 21:53:15,742 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-19 21:53:15,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:53:15,937 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 21:53:15,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:53:15,938 INFO L85 PathProgramCache]: Analyzing trace with hash 681912055, now seen corresponding path program 1 times [2022-07-19 21:53:15,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:53:15,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121171933] [2022-07-19 21:53:15,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:53:15,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:53:16,012 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 21:53:16,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [878470457] [2022-07-19 21:53:16,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:53:16,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:53:16,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:53:16,024 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 21:53:16,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-19 21:53:16,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:53:16,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 2277 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-19 21:53:16,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 21:53:16,492 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-07-19 21:53:16,492 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 21:53:16,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:53:16,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121171933] [2022-07-19 21:53:16,493 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 21:53:16,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878470457] [2022-07-19 21:53:16,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878470457] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:53:16,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:53:16,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 21:53:16,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71679702] [2022-07-19 21:53:16,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:53:16,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 21:53:16,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:53:16,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 21:53:16,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-19 21:53:16,496 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) [2022-07-19 21:53:16,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 21:53:16,817 INFO L93 Difference]: Finished difference Result 277 states and 368 transitions. [2022-07-19 21:53:16,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 21:53:16,817 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 [2022-07-19 21:53:16,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 21:53:16,819 INFO L225 Difference]: With dead ends: 277 [2022-07-19 21:53:16,819 INFO L226 Difference]: Without dead ends: 162 [2022-07-19 21:53:16,820 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 [2022-07-19 21:53:16,821 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 [2022-07-19 21:53:16,821 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] [2022-07-19 21:53:16,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-07-19 21:53:16,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2022-07-19 21:53:16,854 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) [2022-07-19 21:53:16,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 211 transitions. [2022-07-19 21:53:16,857 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 211 transitions. Word has length 99 [2022-07-19 21:53:16,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 21:53:16,857 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 211 transitions. [2022-07-19 21:53:16,858 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) [2022-07-19 21:53:16,858 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 211 transitions. [2022-07-19 21:53:16,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-19 21:53:16,859 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 21:53:16,860 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] [2022-07-19 21:53:16,886 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-19 21:53:17,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-07-19 21:53:17,073 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 21:53:17,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:53:17,074 INFO L85 PathProgramCache]: Analyzing trace with hash -364128269, now seen corresponding path program 2 times [2022-07-19 21:53:17,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:53:17,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437626953] [2022-07-19 21:53:17,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:53:17,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:53:17,134 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 21:53:17,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1989120714] [2022-07-19 21:53:17,135 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-19 21:53:17,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:53:17,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:53:17,136 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 21:53:17,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-19 21:53:17,667 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-19 21:53:17,667 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 21:53:17,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 2418 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-19 21:53:17,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 21:53:17,772 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-07-19 21:53:17,772 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 21:53:17,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:53:17,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437626953] [2022-07-19 21:53:17,772 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 21:53:17,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989120714] [2022-07-19 21:53:17,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989120714] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:53:17,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:53:17,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-19 21:53:17,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668094856] [2022-07-19 21:53:17,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:53:17,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-19 21:53:17,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:53:17,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-19 21:53:17,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-19 21:53:17,789 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) [2022-07-19 21:53:18,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 21:53:18,235 INFO L93 Difference]: Finished difference Result 274 states and 360 transitions. [2022-07-19 21:53:18,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 21:53:18,236 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 [2022-07-19 21:53:18,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 21:53:18,237 INFO L225 Difference]: With dead ends: 274 [2022-07-19 21:53:18,238 INFO L226 Difference]: Without dead ends: 162 [2022-07-19 21:53:18,238 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 [2022-07-19 21:53:18,241 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 [2022-07-19 21:53:18,241 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] [2022-07-19 21:53:18,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-07-19 21:53:18,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2022-07-19 21:53:18,256 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) [2022-07-19 21:53:18,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 209 transitions. [2022-07-19 21:53:18,258 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 209 transitions. Word has length 114 [2022-07-19 21:53:18,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 21:53:18,259 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 209 transitions. [2022-07-19 21:53:18,259 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) [2022-07-19 21:53:18,259 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 209 transitions. [2022-07-19 21:53:18,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-07-19 21:53:18,260 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 21:53:18,261 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] [2022-07-19 21:53:18,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-19 21:53:18,487 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 [2022-07-19 21:53:18,488 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 21:53:18,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:53:18,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1183711671, now seen corresponding path program 1 times [2022-07-19 21:53:18,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:53:18,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063150040] [2022-07-19 21:53:18,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:53:18,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:53:18,545 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 21:53:18,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1007094092] [2022-07-19 21:53:18,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:53:18,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:53:18,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:53:18,547 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) [2022-07-19 21:53:18,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-19 21:53:19,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:53:19,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 2700 conjuncts, 296 conjunts are in the unsatisfiable core [2022-07-19 21:53:19,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 21:53:19,513 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-19 21:53:19,817 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 [2022-07-19 21:53:20,091 INFO L356 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-07-19 21:53:20,092 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 [2022-07-19 21:53:20,306 INFO L356 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-07-19 21:53:20,307 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 [2022-07-19 21:53:50,244 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 [2022-07-19 21:53:50,330 INFO L356 Elim1Store]: treesize reduction 129, result has 28.7 percent of original size [2022-07-19 21:53:50,331 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 [2022-07-19 21:53:58,600 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 21:53:58,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 21:53:58,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 21:53:58,604 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 [2022-07-19 21:53:58,639 INFO L356 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2022-07-19 21:53:58,640 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 [2022-07-19 21:54:22,225 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 42 proven. 115 refuted. 3 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-19 21:54:22,226 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 21:54:41,949 WARN L233 SmtUtils]: Spent 13.45s 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) [2022-07-19 21:54:50,063 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 [2022-07-19 21:54:50,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:54:50,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063150040] [2022-07-19 21:54:50,066 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 21:54:50,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007094092] [2022-07-19 21:54:50,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007094092] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 21:54:50,067 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-19 21:54:50,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58] total 58 [2022-07-19 21:54:50,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283314727] [2022-07-19 21:54:50,067 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-19 21:54:50,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-07-19 21:54:50,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:54:50,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-07-19 21:54:50,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=3434, Unknown=37, NotChecked=118, Total=3782 [2022-07-19 21:54:50,070 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) [2022-07-19 21:55:34,254 WARN L233 SmtUtils]: Spent 8.35s 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) [2022-07-19 21:55:36,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 21:55:36,111 INFO L93 Difference]: Finished difference Result 235 states and 312 transitions. [2022-07-19 21:55:36,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-07-19 21:55:36,112 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 [2022-07-19 21:55:36,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 21:55:36,115 INFO L225 Difference]: With dead ends: 235 [2022-07-19 21:55:36,115 INFO L226 Difference]: Without dead ends: 229 [2022-07-19 21:55:36,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 83 SyntacticMatches, 8 SemanticMatches, 80 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2011 ImplicationChecksByTransitivity, 100.8s TimeCoverageRelationStatistics Valid=351, Invalid=6076, Unknown=57, NotChecked=158, Total=6642 [2022-07-19 21:55:36,117 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 82 mSDsluCounter, 2676 mSDsCounter, 0 mSdLazyCounter, 1649 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 2860 SdHoareTripleChecker+Invalid, 4423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2715 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-19 21:55:36,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 2860 Invalid, 4423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1649 Invalid, 0 Unknown, 2715 Unchecked, 1.4s Time] [2022-07-19 21:55:36,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2022-07-19 21:55:36,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 223. [2022-07-19 21:55:36,136 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) [2022-07-19 21:55:36,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 297 transitions. [2022-07-19 21:55:36,138 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 297 transitions. Word has length 144 [2022-07-19 21:55:36,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 21:55:36,138 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 297 transitions. [2022-07-19 21:55:36,139 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) [2022-07-19 21:55:36,139 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 297 transitions. [2022-07-19 21:55:36,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-07-19 21:55:36,141 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 21:55:36,141 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] [2022-07-19 21:55:36,167 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-19 21:55:36,351 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 [2022-07-19 21:55:36,351 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 21:55:36,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:55:36,352 INFO L85 PathProgramCache]: Analyzing trace with hash 216361017, now seen corresponding path program 1 times [2022-07-19 21:55:36,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:55:36,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904967942] [2022-07-19 21:55:36,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:55:36,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:55:36,448 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 21:55:36,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1939066128] [2022-07-19 21:55:36,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:55:36,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:55:36,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:55:36,451 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) [2022-07-19 21:55:36,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-19 21:55:36,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:55:36,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 2695 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 21:55:36,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 21:55:36,892 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-07-19 21:55:36,893 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 21:55:36,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:55:36,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904967942] [2022-07-19 21:55:36,893 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 21:55:36,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939066128] [2022-07-19 21:55:36,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939066128] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:55:36,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:55:36,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 21:55:36,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585828975] [2022-07-19 21:55:36,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:55:36,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 21:55:36,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:55:36,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 21:55:36,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 21:55:36,896 INFO L87 Difference]: Start difference. First operand 223 states and 297 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-19 21:55:36,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 21:55:36,935 INFO L93 Difference]: Finished difference Result 366 states and 509 transitions. [2022-07-19 21:55:36,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 21:55:36,936 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 144 [2022-07-19 21:55:36,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 21:55:36,941 INFO L225 Difference]: With dead ends: 366 [2022-07-19 21:55:36,941 INFO L226 Difference]: Without dead ends: 228 [2022-07-19 21:55:36,942 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 [2022-07-19 21:55:36,944 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 [2022-07-19 21:55:36,945 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] [2022-07-19 21:55:36,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-07-19 21:55:36,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 225. [2022-07-19 21:55:36,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 138 states have (on average 1.1666666666666667) internal successors, (161), 144 states have internal predecessors, (161), 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) [2022-07-19 21:55:36,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 299 transitions. [2022-07-19 21:55:36,978 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 299 transitions. Word has length 144 [2022-07-19 21:55:36,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 21:55:36,980 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 299 transitions. [2022-07-19 21:55:36,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-19 21:55:36,980 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 299 transitions. [2022-07-19 21:55:36,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-19 21:55:36,983 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 21:55:36,983 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] [2022-07-19 21:55:37,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-19 21:55:37,199 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 [2022-07-19 21:55:37,199 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 21:55:37,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:55:37,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1658135113, now seen corresponding path program 1 times [2022-07-19 21:55:37,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:55:37,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772922233] [2022-07-19 21:55:37,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:55:37,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:55:37,255 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 21:55:37,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [728398498] [2022-07-19 21:55:37,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:55:37,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:55:37,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:55:37,257 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) [2022-07-19 21:55:37,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-19 21:55:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:55:37,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 2708 conjuncts, 31 conjunts are in the unsatisfiable core [2022-07-19 21:55:37,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 21:55:37,794 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-19 21:55:37,794 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 21:55:37,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:55:37,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772922233] [2022-07-19 21:55:37,795 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 21:55:37,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728398498] [2022-07-19 21:55:37,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728398498] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:55:37,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:55:37,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 21:55:37,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268948570] [2022-07-19 21:55:37,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:55:37,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 21:55:37,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:55:37,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 21:55:37,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-19 21:55:37,797 INFO L87 Difference]: Start difference. First operand 225 states and 299 transitions. Second operand has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 9 states have internal predecessors, (80), 3 states have call successors, (22), 2 states have call predecessors, (22), 6 states have return successors, (20), 5 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-19 21:55:38,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 21:55:38,026 INFO L93 Difference]: Finished difference Result 366 states and 500 transitions. [2022-07-19 21:55:38,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-19 21:55:38,026 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 9 states have internal predecessors, (80), 3 states have call successors, (22), 2 states have call predecessors, (22), 6 states have return successors, (20), 5 states have call predecessors, (20), 3 states have call successors, (20) Word has length 156 [2022-07-19 21:55:38,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 21:55:38,028 INFO L225 Difference]: With dead ends: 366 [2022-07-19 21:55:38,029 INFO L226 Difference]: Without dead ends: 236 [2022-07-19 21:55:38,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-07-19 21:55:38,030 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 11 mSDsluCounter, 2066 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2280 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 21:55:38,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2280 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 21:55:38,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2022-07-19 21:55:38,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2022-07-19 21:55:38,045 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) [2022-07-19 21:55:38,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 323 transitions. [2022-07-19 21:55:38,047 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 323 transitions. Word has length 156 [2022-07-19 21:55:38,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 21:55:38,047 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 323 transitions. [2022-07-19 21:55:38,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 9 states have internal predecessors, (80), 3 states have call successors, (22), 2 states have call predecessors, (22), 6 states have return successors, (20), 5 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-19 21:55:38,048 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 323 transitions. [2022-07-19 21:55:38,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-07-19 21:55:38,050 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 21:55:38,050 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] [2022-07-19 21:55:38,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-19 21:55:38,258 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 [2022-07-19 21:55:38,259 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 21:55:38,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:55:38,259 INFO L85 PathProgramCache]: Analyzing trace with hash 915893085, now seen corresponding path program 2 times [2022-07-19 21:55:38,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:55:38,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632501956] [2022-07-19 21:55:38,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:55:38,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:55:38,314 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 21:55:38,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1107477193] [2022-07-19 21:55:38,315 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-19 21:55:38,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:55:38,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:55:38,316 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) [2022-07-19 21:55:38,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-19 21:55:38,778 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-19 21:55:38,779 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 21:55:38,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 2704 conjuncts, 31 conjunts are in the unsatisfiable core [2022-07-19 21:55:38,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 21:55:38,900 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-07-19 21:55:38,901 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 21:55:38,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:55:38,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632501956] [2022-07-19 21:55:38,901 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 21:55:38,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1107477193] [2022-07-19 21:55:38,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1107477193] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:55:38,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:55:38,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-19 21:55:38,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734813234] [2022-07-19 21:55:38,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:55:38,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-19 21:55:38,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:55:38,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-19 21:55:38,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-07-19 21:55:38,903 INFO L87 Difference]: Start difference. First operand 236 states and 323 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) [2022-07-19 21:55:39,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 21:55:39,150 INFO L93 Difference]: Finished difference Result 380 states and 524 transitions. [2022-07-19 21:55:39,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 21:55:39,151 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 [2022-07-19 21:55:39,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 21:55:39,153 INFO L225 Difference]: With dead ends: 380 [2022-07-19 21:55:39,153 INFO L226 Difference]: Without dead ends: 241 [2022-07-19 21:55:39,154 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 [2022-07-19 21:55:39,154 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 12 mSDsluCounter, 2249 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2461 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 21:55:39,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2461 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 21:55:39,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-07-19 21:55:39,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 236. [2022-07-19 21:55:39,169 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, (85), 57 states have call predecessors, (85), 58 states have call successors, (85) [2022-07-19 21:55:39,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 321 transitions. [2022-07-19 21:55:39,171 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 321 transitions. Word has length 150 [2022-07-19 21:55:39,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 21:55:39,171 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 321 transitions. [2022-07-19 21:55:39,172 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) [2022-07-19 21:55:39,172 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 321 transitions. [2022-07-19 21:55:39,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-07-19 21:55:39,174 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 21:55:39,174 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] [2022-07-19 21:55:39,202 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-07-19 21:55:39,387 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 [2022-07-19 21:55:39,387 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 21:55:39,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:55:39,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1850338375, now seen corresponding path program 1 times [2022-07-19 21:55:39,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:55:39,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083078667] [2022-07-19 21:55:39,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:55:39,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:55:39,462 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 21:55:39,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1663648843] [2022-07-19 21:55:39,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:55:39,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:55:39,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:55:39,464 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) [2022-07-19 21:55:39,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-19 21:55:39,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:55:39,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 2705 conjuncts, 115 conjunts are in the unsatisfiable core [2022-07-19 21:55:39,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 21:55:40,297 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_841 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_841))) (exists ((v_ArrVal_842 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_842))))) is different from true [2022-07-19 21:55:40,593 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-19 21:55:40,593 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 [2022-07-19 21:55:40,609 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-19 21:55:40,609 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 [2022-07-19 21:55:40,909 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 141 proven. 1 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-19 21:55:40,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 21:55:41,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:55:41,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083078667] [2022-07-19 21:55:41,839 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 21:55:41,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663648843] [2022-07-19 21:55:41,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663648843] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 21:55:41,839 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-19 21:55:41,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2022-07-19 21:55:41,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194891565] [2022-07-19 21:55:41,839 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-19 21:55:41,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-19 21:55:41,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:55:41,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-19 21:55:41,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1113, Unknown=34, NotChecked=68, Total=1332 [2022-07-19 21:55:41,843 INFO L87 Difference]: Start difference. First operand 236 states and 321 transitions. Second operand has 24 states, 23 states have (on average 3.347826086956522) internal successors, (77), 22 states have internal predecessors, (77), 9 states have call successors, (22), 6 states have call predecessors, (22), 7 states have return successors, (19), 8 states have call predecessors, (19), 9 states have call successors, (19) [2022-07-19 21:55:43,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 21:55:43,234 INFO L93 Difference]: Finished difference Result 429 states and 594 transitions. [2022-07-19 21:55:43,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-07-19 21:55:43,235 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.347826086956522) internal successors, (77), 22 states have internal predecessors, (77), 9 states have call successors, (22), 6 states have call predecessors, (22), 7 states have return successors, (19), 8 states have call predecessors, (19), 9 states have call successors, (19) Word has length 144 [2022-07-19 21:55:43,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 21:55:43,237 INFO L225 Difference]: With dead ends: 429 [2022-07-19 21:55:43,237 INFO L226 Difference]: Without dead ends: 279 [2022-07-19 21:55:43,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 177 SyntacticMatches, 5 SemanticMatches, 50 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=262, Invalid=2241, Unknown=51, NotChecked=98, Total=2652 [2022-07-19 21:55:43,239 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 147 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 978 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 1176 SdHoareTripleChecker+Invalid, 1832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 788 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-19 21:55:43,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 1176 Invalid, 1832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 978 Invalid, 0 Unknown, 788 Unchecked, 0.8s Time] [2022-07-19 21:55:43,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2022-07-19 21:55:43,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 269. [2022-07-19 21:55:43,254 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), 68 states have call successors, (68), 30 states have call predecessors, (68), 30 states have return successors, (102), 61 states have call predecessors, (102), 64 states have call successors, (102) [2022-07-19 21:55:43,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 366 transitions. [2022-07-19 21:55:43,256 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 366 transitions. Word has length 144 [2022-07-19 21:55:43,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 21:55:43,256 INFO L495 AbstractCegarLoop]: Abstraction has 269 states and 366 transitions. [2022-07-19 21:55:43,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.347826086956522) internal successors, (77), 22 states have internal predecessors, (77), 9 states have call successors, (22), 6 states have call predecessors, (22), 7 states have return successors, (19), 8 states have call predecessors, (19), 9 states have call successors, (19) [2022-07-19 21:55:43,257 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 366 transitions. [2022-07-19 21:55:43,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-07-19 21:55:43,258 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 21:55:43,259 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] [2022-07-19 21:55:43,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-19 21:55:43,483 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 [2022-07-19 21:55:43,483 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 21:55:43,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:55:43,483 INFO L85 PathProgramCache]: Analyzing trace with hash -545923538, now seen corresponding path program 1 times [2022-07-19 21:55:43,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:55:43,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932942783] [2022-07-19 21:55:43,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:55:43,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:55:43,551 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 21:55:43,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [557335971] [2022-07-19 21:55:43,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:55:43,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:55:43,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:55:43,553 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) [2022-07-19 21:55:43,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-19 21:55:44,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:55:44,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 2744 conjuncts, 107 conjunts are in the unsatisfiable core [2022-07-19 21:55:44,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 21:55:44,026 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-19 21:55:44,177 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 [2022-07-19 21:55:44,225 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 [2022-07-19 21:55:48,314 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-07-19 21:55:48,314 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 [2022-07-19 21:55:48,376 INFO L356 Elim1Store]: treesize reduction 30, result has 34.8 percent of original size [2022-07-19 21:55:48,377 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 [2022-07-19 21:55:48,513 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_1021 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_1021))) is different from true [2022-07-19 21:55:50,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 21:55:50,603 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 [2022-07-19 21:55:50,612 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-07-19 21:55:50,612 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-07-19 21:56:05,169 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_1022 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (= |c_#memory_$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_1022)))) is different from true [2022-07-19 21:56:31,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 21:56:31,372 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 21:56:31,374 INFO L356 Elim1Store]: treesize reduction 2, result has 33.3 percent of original size [2022-07-19 21:56:31,375 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 26 treesize of output 1 [2022-07-19 21:56:31,378 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 116 proven. 20 refuted. 0 times theorem prover too weak. 35 trivial. 3 not checked. [2022-07-19 21:56:31,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 21:56:32,694 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1030 Int) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_46| Int)) (not (= 0 (select (select (store |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_46| (store (select |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_46|) 0 v_ArrVal_1030)) |c_aws_array_list_pop_front_n_~list#1.base|) (+ 32 |c_aws_array_list_pop_front_n_~list#1.offset|))))) is different from false [2022-07-19 21:56:32,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:56:32,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932942783] [2022-07-19 21:56:32,696 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 21:56:32,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557335971] [2022-07-19 21:56:32,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557335971] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 21:56:32,696 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-19 21:56:32,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2022-07-19 21:56:32,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322912380] [2022-07-19 21:56:32,696 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-19 21:56:32,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-07-19 21:56:32,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:56:32,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-07-19 21:56:32,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=655, Unknown=27, NotChecked=162, Total=930 [2022-07-19 21:56:32,698 INFO L87 Difference]: Start difference. First operand 269 states and 366 transitions. Second operand has 30 states, 26 states have (on average 3.1923076923076925) internal successors, (83), 26 states have internal predecessors, (83), 12 states have call successors, (23), 9 states have call predecessors, (23), 11 states have return successors, (20), 11 states have call predecessors, (20), 12 states have call successors, (20) [2022-07-19 21:57:05,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 21:57:05,870 INFO L93 Difference]: Finished difference Result 437 states and 614 transitions. [2022-07-19 21:57:05,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-07-19 21:57:05,871 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 26 states have (on average 3.1923076923076925) internal successors, (83), 26 states have internal predecessors, (83), 12 states have call successors, (23), 9 states have call predecessors, (23), 11 states have return successors, (20), 11 states have call predecessors, (20), 12 states have call successors, (20) Word has length 152 [2022-07-19 21:57:05,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 21:57:05,873 INFO L225 Difference]: With dead ends: 437 [2022-07-19 21:57:05,873 INFO L226 Difference]: Without dead ends: 290 [2022-07-19 21:57:05,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 185 SyntacticMatches, 5 SemanticMatches, 43 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 80.6s TimeCoverageRelationStatistics Valid=168, Invalid=1511, Unknown=55, NotChecked=246, Total=1980 [2022-07-19 21:57:05,874 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 189 mSDsluCounter, 1141 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 1338 SdHoareTripleChecker+Invalid, 2628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1643 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-19 21:57:05,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 1338 Invalid, 2628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 811 Invalid, 0 Unknown, 1643 Unchecked, 0.6s Time] [2022-07-19 21:57:05,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-07-19 21:57:05,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 288. [2022-07-19 21:57:05,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 182 states have (on average 1.1483516483516483) internal successors, (209), 191 states have internal predecessors, (209), 72 states have call successors, (72), 32 states have call predecessors, (72), 33 states have return successors, (126), 64 states have call predecessors, (126), 68 states have call successors, (126) [2022-07-19 21:57:05,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 407 transitions. [2022-07-19 21:57:05,911 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 407 transitions. Word has length 152 [2022-07-19 21:57:05,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 21:57:05,912 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 407 transitions. [2022-07-19 21:57:05,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 26 states have (on average 3.1923076923076925) internal successors, (83), 26 states have internal predecessors, (83), 12 states have call successors, (23), 9 states have call predecessors, (23), 11 states have return successors, (20), 11 states have call predecessors, (20), 12 states have call successors, (20) [2022-07-19 21:57:05,912 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 407 transitions. [2022-07-19 21:57:05,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-07-19 21:57:05,914 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 21:57:05,914 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] [2022-07-19 21:57:05,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-19 21:57:06,131 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 [2022-07-19 21:57:06,132 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 21:57:06,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:57:06,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1826882979, now seen corresponding path program 1 times [2022-07-19 21:57:06,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:57:06,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057513522] [2022-07-19 21:57:06,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:57:06,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:57:06,200 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 21:57:06,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [633551274] [2022-07-19 21:57:06,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:57:06,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:57:06,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:57:06,202 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) [2022-07-19 21:57:06,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-19 21:57:06,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:57:06,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 2705 conjuncts, 80 conjunts are in the unsatisfiable core [2022-07-19 21:57:06,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 21:57:06,681 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-19 21:57:11,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 21:57:11,417 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 21 treesize of output 20 [2022-07-19 21:57:11,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 21:57:11,421 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 21 treesize of output 20 [2022-07-19 21:57:12,555 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_1171 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_1171))) (exists ((v_ArrVal_1170 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_1170)))) is different from true [2022-07-19 21:57:12,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 21:57:12,852 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 16 treesize of output 18 [2022-07-19 21:57:12,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 21:57:12,859 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 16 treesize of output 18 [2022-07-19 21:57:12,862 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-07-19 21:57:12,865 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 89 proven. 4 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-07-19 21:57:12,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 21:57:13,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:57:13,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057513522] [2022-07-19 21:57:13,186 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 21:57:13,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633551274] [2022-07-19 21:57:13,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633551274] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 21:57:13,187 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-19 21:57:13,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2022-07-19 21:57:13,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120699828] [2022-07-19 21:57:13,187 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-19 21:57:13,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-19 21:57:13,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:57:13,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-19 21:57:13,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=194, Unknown=10, NotChecked=28, Total=272 [2022-07-19 21:57:13,189 INFO L87 Difference]: Start difference. First operand 288 states and 407 transitions. Second operand has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 14 states have internal predecessors, (64), 5 states have call successors, (20), 5 states have call predecessors, (20), 6 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2022-07-19 21:57:16,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 21:57:16,110 INFO L93 Difference]: Finished difference Result 458 states and 671 transitions. [2022-07-19 21:57:16,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-19 21:57:16,111 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 14 states have internal predecessors, (64), 5 states have call successors, (20), 5 states have call predecessors, (20), 6 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) Word has length 146 [2022-07-19 21:57:16,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 21:57:16,113 INFO L225 Difference]: With dead ends: 458 [2022-07-19 21:57:16,114 INFO L226 Difference]: Without dead ends: 297 [2022-07-19 21:57:16,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 222 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=50, Invalid=248, Unknown=12, NotChecked=32, Total=342 [2022-07-19 21:57:16,115 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 73 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 1838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1177 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-19 21:57:16,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 842 Invalid, 1838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 599 Invalid, 0 Unknown, 1177 Unchecked, 0.6s Time] [2022-07-19 21:57:16,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-07-19 21:57:16,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 293. [2022-07-19 21:57:16,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 186 states have (on average 1.1505376344086022) internal successors, (214), 196 states have internal predecessors, (214), 72 states have call successors, (72), 32 states have call predecessors, (72), 34 states have return successors, (141), 64 states have call predecessors, (141), 68 states have call successors, (141) [2022-07-19 21:57:16,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 427 transitions. [2022-07-19 21:57:16,138 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 427 transitions. Word has length 146 [2022-07-19 21:57:16,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 21:57:16,138 INFO L495 AbstractCegarLoop]: Abstraction has 293 states and 427 transitions. [2022-07-19 21:57:16,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.266666666666667) internal successors, (64), 14 states have internal predecessors, (64), 5 states have call successors, (20), 5 states have call predecessors, (20), 6 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2022-07-19 21:57:16,139 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 427 transitions. [2022-07-19 21:57:16,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-07-19 21:57:16,141 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 21:57:16,141 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 21:57:16,170 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-07-19 21:57:16,355 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 [2022-07-19 21:57:16,355 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 21:57:16,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:57:16,356 INFO L85 PathProgramCache]: Analyzing trace with hash -196897580, now seen corresponding path program 2 times [2022-07-19 21:57:16,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:57:16,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185947740] [2022-07-19 21:57:16,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:57:16,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:57:16,454 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 21:57:16,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [826969197] [2022-07-19 21:57:16,454 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-19 21:57:16,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:57:16,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:57:16,456 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) [2022-07-19 21:57:16,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-19 21:57:17,353 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-19 21:57:17,353 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 21:57:17,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 2749 conjuncts, 90 conjunts are in the unsatisfiable core [2022-07-19 21:57:17,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 21:57:19,852 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_1340 Int) (v_ArrVal_1338 Int)) (and (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_1338)) |c_#memory_$Pointer$.offset|) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_1340)) |c_#memory_$Pointer$.base|))) is different from true