./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 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_swap_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 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-16 20:15:30,644 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-16 20:15:30,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-16 20:15:30,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-16 20:15:30,675 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-16 20:15:30,677 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-16 20:15:30,678 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-16 20:15:30,680 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-16 20:15:30,681 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-16 20:15:30,685 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-16 20:15:30,685 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-16 20:15:30,686 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-16 20:15:30,686 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-16 20:15:30,688 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-16 20:15:30,689 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-16 20:15:30,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-16 20:15:30,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-16 20:15:30,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-16 20:15:30,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-16 20:15:30,704 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-16 20:15:30,706 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-16 20:15:30,707 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-16 20:15:30,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-16 20:15:30,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-16 20:15:30,717 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-16 20:15:30,718 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-16 20:15:30,718 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-16 20:15:30,719 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-16 20:15:30,719 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-16 20:15:30,720 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-16 20:15:30,720 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-16 20:15:30,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-16 20:15:30,722 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-16 20:15:30,723 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-16 20:15:30,724 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-16 20:15:30,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-16 20:15:30,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-16 20:15:30,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-16 20:15:30,725 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-16 20:15:30,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-16 20:15:30,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-16 20:15:30,727 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-16 20:15:30,751 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-16 20:15:30,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-16 20:15:30,752 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-16 20:15:30,752 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-16 20:15:30,753 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-16 20:15:30,753 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-16 20:15:30,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-16 20:15:30,754 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-16 20:15:30,754 INFO L138 SettingsManager]: * Use SBE=true [2021-11-16 20:15:30,754 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-16 20:15:30,755 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-16 20:15:30,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-16 20:15:30,755 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-16 20:15:30,755 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-16 20:15:30,755 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-16 20:15:30,756 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-16 20:15:30,756 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-16 20:15:30,756 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-16 20:15:30,756 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-16 20:15:30,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-16 20:15:30,757 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-16 20:15:30,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-16 20:15:30,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-16 20:15:30,761 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-16 20:15:30,761 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-16 20:15:30,762 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-16 20:15:30,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-16 20:15:30,763 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-16 20:15:30,763 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-16 20:15:30,763 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-16 20:15:30,763 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-16 20:15:30,764 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 [2021-11-16 20:15:30,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-16 20:15:30,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-16 20:15:30,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-16 20:15:30,968 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-16 20:15:30,968 INFO L275 PluginConnector]: CDTParser initialized [2021-11-16 20:15:30,969 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2021-11-16 20:15:31,016 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcdd99cd5/83fe2d7bc2284a61aa2b9b45df3b66e7/FLAG687b2ec57 [2021-11-16 20:15:31,571 INFO L306 CDTParser]: Found 1 translation units. [2021-11-16 20:15:31,572 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2021-11-16 20:15:31,601 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcdd99cd5/83fe2d7bc2284a61aa2b9b45df3b66e7/FLAG687b2ec57 [2021-11-16 20:15:32,038 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcdd99cd5/83fe2d7bc2284a61aa2b9b45df3b66e7 [2021-11-16 20:15:32,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-16 20:15:32,041 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-16 20:15:32,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-16 20:15:32,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-16 20:15:32,045 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-16 20:15:32,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:15:32" (1/1) ... [2021-11-16 20:15:32,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e90eab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:15:32, skipping insertion in model container [2021-11-16 20:15:32,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:15:32" (1/1) ... [2021-11-16 20:15:32,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-16 20:15:32,121 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-16 20:15:32,300 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_swap_harness.i[4493,4506] [2021-11-16 20:15:32,306 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_swap_harness.i[4553,4566] [2021-11-16 20:15:32,319 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-16 20:15:32,323 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-16 20:15:32,702 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-16 20:15:32,742 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:32,742 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:32,742 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:32,743 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:32,744 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:32,750 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:32,751 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:32,752 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:32,752 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:32,754 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:32,755 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:32,757 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:32,758 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:32,948 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-16 20:15:32,949 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-16 20:15:32,949 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-16 20:15:32,950 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-16 20:15:32,951 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-16 20:15:32,951 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-16 20:15:32,952 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-16 20:15:32,952 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-16 20:15:32,952 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-16 20:15:32,953 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-16 20:15:33,034 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:33,038 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:33,040 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:33,044 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:33,088 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-16 20:15:33,123 INFO L203 MainTranslator]: Completed pre-run [2021-11-16 20:15:33,139 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_swap_harness.i[4493,4506] [2021-11-16 20:15:33,143 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_swap_harness.i[4553,4566] [2021-11-16 20:15:33,144 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-16 20:15:33,145 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-16 20:15:33,161 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-16 20:15:33,170 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:33,170 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:33,171 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:33,171 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:33,171 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:33,175 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:33,175 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:33,176 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:33,176 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:33,177 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:33,177 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:33,177 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:33,178 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:33,196 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-16 20:15:33,197 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-16 20:15:33,197 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-16 20:15:33,197 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-16 20:15:33,198 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-16 20:15:33,198 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-16 20:15:33,199 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-16 20:15:33,199 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-16 20:15:33,199 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-16 20:15:33,200 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-16 20:15:33,214 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:33,214 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:33,215 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:33,218 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:15:33,230 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-16 20:15:33,370 INFO L208 MainTranslator]: Completed translation [2021-11-16 20:15:33,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:15:33 WrapperNode [2021-11-16 20:15:33,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-16 20:15:33,371 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-16 20:15:33,371 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-16 20:15:33,371 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-16 20:15:33,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:15:33" (1/1) ... [2021-11-16 20:15:33,436 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:15:33" (1/1) ... [2021-11-16 20:15:33,483 INFO L137 Inliner]: procedures = 693, calls = 1684, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 646 [2021-11-16 20:15:33,491 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-16 20:15:33,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-16 20:15:33,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-16 20:15:33,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-16 20:15:33,498 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:15:33" (1/1) ... [2021-11-16 20:15:33,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:15:33" (1/1) ... [2021-11-16 20:15:33,502 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:15:33" (1/1) ... [2021-11-16 20:15:33,503 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:15:33" (1/1) ... [2021-11-16 20:15:33,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:15:33" (1/1) ... [2021-11-16 20:15:33,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:15:33" (1/1) ... [2021-11-16 20:15:33,537 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:15:33" (1/1) ... [2021-11-16 20:15:33,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-16 20:15:33,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-16 20:15:33,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-16 20:15:33,545 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-16 20:15:33,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:15:33" (1/1) ... [2021-11-16 20:15:33,550 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-16 20:15:33,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 20:15:33,581 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) [2021-11-16 20:15:33,593 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 [2021-11-16 20:15:33,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-16 20:15:33,611 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2021-11-16 20:15:33,612 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2021-11-16 20:15:33,612 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-11-16 20:15:33,612 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-11-16 20:15:33,612 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-16 20:15:33,612 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-16 20:15:33,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-16 20:15:33,613 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-16 20:15:33,613 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-16 20:15:33,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-16 20:15:33,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-16 20:15:33,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-16 20:15:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-16 20:15:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-16 20:15:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2021-11-16 20:15:33,621 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2021-11-16 20:15:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-16 20:15:33,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-16 20:15:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-16 20:15:33,621 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-16 20:15:33,622 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-16 20:15:33,622 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-16 20:15:33,622 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2021-11-16 20:15:33,622 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2021-11-16 20:15:33,622 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-16 20:15:33,622 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-16 20:15:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2021-11-16 20:15:33,623 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2021-11-16 20:15:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-16 20:15:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-16 20:15:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-16 20:15:33,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-16 20:15:33,624 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2021-11-16 20:15:33,624 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2021-11-16 20:15:33,624 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-16 20:15:33,625 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-16 20:15:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-16 20:15:33,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-16 20:15:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-16 20:15:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2021-11-16 20:15:33,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2021-11-16 20:15:33,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-16 20:15:33,817 INFO L236 CfgBuilder]: Building ICFG [2021-11-16 20:15:33,818 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-16 20:15:34,828 INFO L277 CfgBuilder]: Performing block encoding [2021-11-16 20:15:34,835 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-16 20:15:34,835 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-16 20:15:34,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:15:34 BoogieIcfgContainer [2021-11-16 20:15:34,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-16 20:15:34,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-16 20:15:34,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-16 20:15:34,840 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-16 20:15:34,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:15:32" (1/3) ... [2021-11-16 20:15:34,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7477e17c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:15:34, skipping insertion in model container [2021-11-16 20:15:34,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:15:33" (2/3) ... [2021-11-16 20:15:34,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7477e17c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:15:34, skipping insertion in model container [2021-11-16 20:15:34,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:15:34" (3/3) ... [2021-11-16 20:15:34,845 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_harness.i [2021-11-16 20:15:34,848 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-16 20:15:34,849 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-16 20:15:34,888 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-16 20:15:34,896 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-16 20:15:34,896 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-16 20:15:34,913 INFO L276 IsEmpty]: Start isEmpty. Operand has 180 states, 102 states have (on average 1.1666666666666667) internal successors, (119), 103 states have internal predecessors, (119), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2021-11-16 20:15:34,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-16 20:15:34,918 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:15:34,919 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:15:34,919 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:15:34,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:15:34,922 INFO L85 PathProgramCache]: Analyzing trace with hash 223694820, now seen corresponding path program 1 times [2021-11-16 20:15:34,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:15:34,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274981882] [2021-11-16 20:15:34,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:15:34,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:15:35,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:15:35,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-16 20:15:35,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:15:35,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-16 20:15:35,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:15:35,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-16 20:15:35,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:15:35,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-16 20:15:35,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:15:35,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-16 20:15:35,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:15:35,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-16 20:15:35,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:15:35,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-16 20:15:35,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:15:35,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-16 20:15:35,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:15:35,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-16 20:15:35,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:15:35,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-16 20:15:35,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:15:35,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-16 20:15:35,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:15:35,444 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-11-16 20:15:35,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:15:35,445 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274981882] [2021-11-16 20:15:35,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274981882] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 20:15:35,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 20:15:35,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-16 20:15:35,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312497869] [2021-11-16 20:15:35,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 20:15:35,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-16 20:15:35,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:15:35,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-16 20:15:35,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-16 20:15:35,474 INFO L87 Difference]: Start difference. First operand has 180 states, 102 states have (on average 1.1666666666666667) internal successors, (119), 103 states have internal predecessors, (119), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-16 20:15:36,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:15:36,571 INFO L93 Difference]: Finished difference Result 380 states and 580 transitions. [2021-11-16 20:15:36,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-16 20:15:36,573 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 69 [2021-11-16 20:15:36,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:15:36,583 INFO L225 Difference]: With dead ends: 380 [2021-11-16 20:15:36,583 INFO L226 Difference]: Without dead ends: 202 [2021-11-16 20:15:36,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-16 20:15:36,592 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 50 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-16 20:15:36,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 320 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-16 20:15:36,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-11-16 20:15:36,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 175. [2021-11-16 20:15:36,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 98 states have (on average 1.1428571428571428) internal successors, (112), 99 states have internal predecessors, (112), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2021-11-16 20:15:36,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 233 transitions. [2021-11-16 20:15:36,639 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 233 transitions. Word has length 69 [2021-11-16 20:15:36,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:15:36,639 INFO L470 AbstractCegarLoop]: Abstraction has 175 states and 233 transitions. [2021-11-16 20:15:36,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-16 20:15:36,640 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 233 transitions. [2021-11-16 20:15:36,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-16 20:15:36,642 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:15:36,642 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:15:36,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-16 20:15:36,642 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:15:36,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:15:36,643 INFO L85 PathProgramCache]: Analyzing trace with hash -636522710, now seen corresponding path program 1 times [2021-11-16 20:15:36,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:15:36,643 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142401113] [2021-11-16 20:15:36,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:15:36,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:15:36,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:15:36,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-16 20:15:36,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:15:36,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-16 20:15:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:15:36,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-16 20:15:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:15:36,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-16 20:15:36,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:15:36,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-16 20:15:36,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:15:36,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-16 20:15:36,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:15:36,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-16 20:15:36,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:15:36,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-16 20:15:36,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:15:36,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-16 20:15:36,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:15:36,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-16 20:15:36,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:15:36,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-16 20:15:36,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:15:36,879 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-11-16 20:15:36,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:15:36,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142401113] [2021-11-16 20:15:36,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142401113] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-16 20:15:36,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255267412] [2021-11-16 20:15:36,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:15:36,880 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:15:36,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 20:15:36,881 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) [2021-11-16 20:15:36,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-16 20:15:37,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:15:37,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 1979 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-16 20:15:37,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 20:15:37,421 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-16 20:15:37,421 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-16 20:15:37,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255267412] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 20:15:37,422 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-16 20:15:37,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2021-11-16 20:15:37,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814977361] [2021-11-16 20:15:37,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 20:15:37,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-16 20:15:37,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:15:37,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-16 20:15:37,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-16 20:15:37,424 INFO L87 Difference]: Start difference. First operand 175 states and 233 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-16 20:15:37,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:15:37,638 INFO L93 Difference]: Finished difference Result 315 states and 432 transitions. [2021-11-16 20:15:37,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-16 20:15:37,639 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 69 [2021-11-16 20:15:37,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:15:37,641 INFO L225 Difference]: With dead ends: 315 [2021-11-16 20:15:37,641 INFO L226 Difference]: Without dead ends: 177 [2021-11-16 20:15:37,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-11-16 20:15:37,643 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 232 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-16 20:15:37,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 661 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-16 20:15:37,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2021-11-16 20:15:37,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2021-11-16 20:15:37,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 99 states have (on average 1.1414141414141414) internal successors, (113), 101 states have internal predecessors, (113), 61 states have call successors, (61), 15 states have call predecessors, (61), 16 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2021-11-16 20:15:37,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 242 transitions. [2021-11-16 20:15:37,655 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 242 transitions. Word has length 69 [2021-11-16 20:15:37,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:15:37,657 INFO L470 AbstractCegarLoop]: Abstraction has 177 states and 242 transitions. [2021-11-16 20:15:37,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-16 20:15:37,657 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 242 transitions. [2021-11-16 20:15:37,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-16 20:15:37,661 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:15:37,661 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:15:37,680 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-16 20:15:37,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:15:37,880 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:15:37,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:15:37,881 INFO L85 PathProgramCache]: Analyzing trace with hash -164009474, now seen corresponding path program 1 times [2021-11-16 20:15:37,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:15:37,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682411032] [2021-11-16 20:15:37,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:15:37,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:15:37,925 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-16 20:15:37,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1207068864] [2021-11-16 20:15:37,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:15:37,926 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:15:37,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 20:15:37,927 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) [2021-11-16 20:15:37,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-16 20:15:38,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:15:38,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 2100 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-16 20:15:38,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 20:15:38,423 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-16 20:15:38,423 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-16 20:15:38,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:15:38,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682411032] [2021-11-16 20:15:38,424 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-16 20:15:38,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207068864] [2021-11-16 20:15:38,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207068864] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 20:15:38,424 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 20:15:38,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-16 20:15:38,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60572315] [2021-11-16 20:15:38,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 20:15:38,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-16 20:15:38,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:15:38,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-16 20:15:38,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-16 20:15:38,426 INFO L87 Difference]: Start difference. First operand 177 states and 242 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2021-11-16 20:15:38,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:15:38,720 INFO L93 Difference]: Finished difference Result 326 states and 455 transitions. [2021-11-16 20:15:38,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-16 20:15:38,721 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 84 [2021-11-16 20:15:38,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:15:38,723 INFO L225 Difference]: With dead ends: 326 [2021-11-16 20:15:38,723 INFO L226 Difference]: Without dead ends: 189 [2021-11-16 20:15:38,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-11-16 20:15:38,724 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 250 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-16 20:15:38,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 998 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-16 20:15:38,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-11-16 20:15:38,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2021-11-16 20:15:38,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 105 states have (on average 1.1428571428571428) internal successors, (120), 107 states have internal predecessors, (120), 66 states have call successors, (66), 16 states have call predecessors, (66), 17 states have return successors, (73), 65 states have call predecessors, (73), 65 states have call successors, (73) [2021-11-16 20:15:38,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 259 transitions. [2021-11-16 20:15:38,739 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 259 transitions. Word has length 84 [2021-11-16 20:15:38,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:15:38,740 INFO L470 AbstractCegarLoop]: Abstraction has 189 states and 259 transitions. [2021-11-16 20:15:38,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2021-11-16 20:15:38,747 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 259 transitions. [2021-11-16 20:15:38,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-16 20:15:38,748 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:15:38,748 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:15:38,769 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-16 20:15:38,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-16 20:15:38,954 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:15:38,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:15:38,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1494755288, now seen corresponding path program 1 times [2021-11-16 20:15:38,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:15:38,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023716963] [2021-11-16 20:15:38,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:15:38,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:15:38,982 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-16 20:15:38,982 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [377512343] [2021-11-16 20:15:38,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:15:38,983 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:15:38,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 20:15:38,987 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) [2021-11-16 20:15:38,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-16 20:15:39,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:15:39,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 2342 conjuncts, 254 conjunts are in the unsatisfiable core [2021-11-16 20:15:39,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 20:15:39,501 INFO L388 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 [2021-11-16 20:15:39,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:15:39,906 INFO L354 Elim1Store]: treesize reduction 44, result has 47.0 percent of original size [2021-11-16 20:15:39,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 48 [2021-11-16 20:15:56,763 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-11-16 20:15:56,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 134 treesize of output 131 [2021-11-16 20:16:47,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:16:47,707 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-16 20:16:47,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:16:47,708 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-16 20:16:47,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:16:47,757 INFO L354 Elim1Store]: treesize reduction 19, result has 26.9 percent of original size [2021-11-16 20:16:47,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 114 treesize of output 94 [2021-11-16 20:16:47,796 INFO L354 Elim1Store]: treesize reduction 36, result has 26.5 percent of original size [2021-11-16 20:16:47,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 124 treesize of output 128 [2021-11-16 20:17:21,054 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-16 20:17:21,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 172 treesize of output 88 [2021-11-16 20:20:51,491 WARN L838 $PredicateComparison]: unable to prove that (exists ((aux_mod_v_arrayElimCell_14_45 Int) (aux_mod_v_arrayElimCell_16_45 Int) (aux_div_v_arrayElimCell_16_45 Int) (aux_div_v_arrayElimCell_14_45 Int)) (let ((.cse2 (+ aux_mod_v_arrayElimCell_14_45 (* aux_div_v_arrayElimCell_14_45 18446744073709551616))) (.cse1 (+ aux_mod_v_arrayElimCell_16_45 (* aux_div_v_arrayElimCell_16_45 18446744073709551616)))) (and (let ((.cse0 (mod (* .cse1 (div .cse2 .cse1)) 18446744073709551616))) (or (and (<= .cse0 0) (= |c_aws_array_list_length_#t~ret264| 1)) (and (< 0 .cse0) (= |c_aws_array_list_length_#t~ret264| 0)))) (= (mod .cse2 .cse1) 0) (<= 0 aux_mod_v_arrayElimCell_16_45) (<= aux_mod_v_arrayElimCell_14_45 0) (< aux_mod_v_arrayElimCell_16_45 18446744073709551616) (<= 0 aux_mod_v_arrayElimCell_14_45) (not (= aux_mod_v_arrayElimCell_16_45 0))))) is different from false Killed by 15