./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_init_static_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_init_static_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 0ba06c24e4863868ad00a49056930e4c556765c875f4e2eef69c939c987b26bc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-16 20:03:20,223 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-16 20:03:20,225 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-16 20:03:20,274 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-16 20:03:20,274 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-16 20:03:20,277 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-16 20:03:20,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-16 20:03:20,283 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-16 20:03:20,285 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-16 20:03:20,289 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-16 20:03:20,290 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-16 20:03:20,291 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-16 20:03:20,291 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-16 20:03:20,293 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-16 20:03:20,295 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-16 20:03:20,299 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-16 20:03:20,301 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-16 20:03:20,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-16 20:03:20,303 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-16 20:03:20,306 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-16 20:03:20,308 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-16 20:03:20,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-16 20:03:20,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-16 20:03:20,311 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-16 20:03:20,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-16 20:03:20,318 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-16 20:03:20,319 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-16 20:03:20,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-16 20:03:20,320 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-16 20:03:20,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-16 20:03:20,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-16 20:03:20,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-16 20:03:20,324 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-16 20:03:20,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-16 20:03:20,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-16 20:03:20,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-16 20:03:20,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-16 20:03:20,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-16 20:03:20,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-16 20:03:20,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-16 20:03:20,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-16 20:03:20,329 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-16 20:03:20,360 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-16 20:03:20,360 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-16 20:03:20,361 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-16 20:03:20,361 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-16 20:03:20,362 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-16 20:03:20,362 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-16 20:03:20,362 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-16 20:03:20,363 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-16 20:03:20,363 INFO L138 SettingsManager]: * Use SBE=true [2021-11-16 20:03:20,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-16 20:03:20,364 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-16 20:03:20,364 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-16 20:03:20,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-16 20:03:20,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-16 20:03:20,365 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-16 20:03:20,365 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-16 20:03:20,365 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-16 20:03:20,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-16 20:03:20,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-16 20:03:20,366 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-16 20:03:20,366 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-16 20:03:20,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-16 20:03:20,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-16 20:03:20,366 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-16 20:03:20,367 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-16 20:03:20,367 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-16 20:03:20,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-16 20:03:20,367 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-16 20:03:20,367 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-16 20:03:20,368 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-16 20:03:20,368 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-16 20:03:20,368 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ba06c24e4863868ad00a49056930e4c556765c875f4e2eef69c939c987b26bc [2021-11-16 20:03:20,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-16 20:03:20,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-16 20:03:20,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-16 20:03:20,631 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-16 20:03:20,631 INFO L275 PluginConnector]: CDTParser initialized [2021-11-16 20:03:20,632 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_init_static_harness.i [2021-11-16 20:03:20,687 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7e4cd409/53fb00a4fadc43ba9054289f8e6e06b9/FLAGabe698515 [2021-11-16 20:03:21,352 INFO L306 CDTParser]: Found 1 translation units. [2021-11-16 20:03:21,353 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_init_static_harness.i [2021-11-16 20:03:21,393 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7e4cd409/53fb00a4fadc43ba9054289f8e6e06b9/FLAGabe698515 [2021-11-16 20:03:21,704 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7e4cd409/53fb00a4fadc43ba9054289f8e6e06b9 [2021-11-16 20:03:21,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-16 20:03:21,709 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-16 20:03:21,712 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-16 20:03:21,712 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-16 20:03:21,715 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-16 20:03:21,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:03:21" (1/1) ... [2021-11-16 20:03:21,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b7d9d11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:03:21, skipping insertion in model container [2021-11-16 20:03:21,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:03:21" (1/1) ... [2021-11-16 20:03:21,722 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-16 20:03:21,812 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-16 20:03:22,065 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_init_static_harness.i[4500,4513] [2021-11-16 20:03:22,071 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_init_static_harness.i[4560,4573] [2021-11-16 20:03:22,089 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-16 20:03:22,092 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-16 20:03:22,657 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-16 20:03:22,717 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:03:22,723 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:03:22,723 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:03:22,724 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:03:22,726 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:03:22,736 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:03:22,737 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:03:22,738 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:03:22,739 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:03:22,740 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:03:22,740 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:03:22,741 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:03:22,742 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:03:22,971 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-16 20:03:22,972 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-16 20:03:22,972 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-16 20:03:22,973 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-16 20:03:22,974 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-16 20:03:22,975 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-16 20:03:22,975 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-16 20:03:22,975 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-16 20:03:22,976 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-16 20:03:22,976 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-16 20:03:23,074 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:03:23,084 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:03:23,098 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-16 20:03:23,111 INFO L203 MainTranslator]: Completed pre-run [2021-11-16 20:03:23,132 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_init_static_harness.i[4500,4513] [2021-11-16 20:03:23,133 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_init_static_harness.i[4560,4573] [2021-11-16 20:03:23,135 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-16 20:03:23,136 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-16 20:03:23,167 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-16 20:03:23,179 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:03:23,180 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:03:23,181 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:03:23,181 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:03:23,182 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:03:23,187 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:03:23,188 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:03:23,189 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:03:23,189 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:03:23,190 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:03:23,190 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:03:23,191 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:03:23,191 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:03:23,215 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-16 20:03:23,215 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-16 20:03:23,216 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-16 20:03:23,217 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-16 20:03:23,217 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-16 20:03:23,217 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-16 20:03:23,218 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-16 20:03:23,218 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-16 20:03:23,219 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-16 20:03:23,219 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-16 20:03:23,245 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:03:23,248 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-16 20:03:23,252 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-16 20:03:23,471 INFO L208 MainTranslator]: Completed translation [2021-11-16 20:03:23,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:03:23 WrapperNode [2021-11-16 20:03:23,472 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-16 20:03:23,473 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-16 20:03:23,473 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-16 20:03:23,473 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-16 20:03:23,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:03:23" (1/1) ... [2021-11-16 20:03:23,557 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:03:23" (1/1) ... [2021-11-16 20:03:23,605 INFO L137 Inliner]: procedures = 683, calls = 1248, calls flagged for inlining = 53, calls inlined = 9, statements flattened = 157 [2021-11-16 20:03:23,605 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-16 20:03:23,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-16 20:03:23,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-16 20:03:23,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-16 20:03:23,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:03:23" (1/1) ... [2021-11-16 20:03:23,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:03:23" (1/1) ... [2021-11-16 20:03:23,619 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:03:23" (1/1) ... [2021-11-16 20:03:23,620 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:03:23" (1/1) ... [2021-11-16 20:03:23,632 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:03:23" (1/1) ... [2021-11-16 20:03:23,634 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:03:23" (1/1) ... [2021-11-16 20:03:23,638 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:03:23" (1/1) ... [2021-11-16 20:03:23,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-16 20:03:23,643 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-16 20:03:23,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-16 20:03:23,644 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-16 20:03:23,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:03:23" (1/1) ... [2021-11-16 20:03:23,650 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-16 20:03:23,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 20:03:23,680 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 20:03:23,697 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 20:03:23,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-16 20:03:23,713 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-11-16 20:03:23,713 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-11-16 20:03:23,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-16 20:03:23,713 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-16 20:03:23,714 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-16 20:03:23,714 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-16 20:03:23,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-16 20:03:23,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-16 20:03:23,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-16 20:03:23,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-16 20:03:23,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-16 20:03:23,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-16 20:03:23,715 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-16 20:03:23,715 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-16 20:03:23,715 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-16 20:03:23,715 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-16 20:03:23,715 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-16 20:03:23,715 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-16 20:03:23,716 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-16 20:03:23,716 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-16 20:03:23,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-16 20:03:23,716 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-16 20:03:23,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-16 20:03:23,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-16 20:03:23,716 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-16 20:03:23,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-16 20:03:23,717 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-16 20:03:23,717 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-16 20:03:23,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-16 20:03:23,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-16 20:03:23,903 INFO L236 CfgBuilder]: Building ICFG [2021-11-16 20:03:23,913 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-16 20:03:24,145 INFO L277 CfgBuilder]: Performing block encoding [2021-11-16 20:03:24,151 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-16 20:03:24,152 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-16 20:03:24,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:03:24 BoogieIcfgContainer [2021-11-16 20:03:24,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-16 20:03:24,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-16 20:03:24,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-16 20:03:24,157 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-16 20:03:24,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:03:21" (1/3) ... [2021-11-16 20:03:24,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68f74f8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:03:24, skipping insertion in model container [2021-11-16 20:03:24,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:03:23" (2/3) ... [2021-11-16 20:03:24,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68f74f8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:03:24, skipping insertion in model container [2021-11-16 20:03:24,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:03:24" (3/3) ... [2021-11-16 20:03:24,160 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_init_static_harness.i [2021-11-16 20:03:24,164 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-16 20:03:24,164 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-16 20:03:24,198 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-16 20:03:24,203 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 20:03:24,203 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-16 20:03:24,217 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 64 states have (on average 1.171875) internal successors, (75), 65 states have internal predecessors, (75), 30 states have call successors, (30), 9 states have call predecessors, (30), 9 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2021-11-16 20:03:24,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-16 20:03:24,224 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:03:24,225 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 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] [2021-11-16 20:03:24,225 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:03:24,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:03:24,229 INFO L85 PathProgramCache]: Analyzing trace with hash -946297550, now seen corresponding path program 1 times [2021-11-16 20:03:24,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:03:24,237 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152636960] [2021-11-16 20:03:24,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:03:24,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:03:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:03:24,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-16 20:03:24,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:03:24,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-16 20:03:24,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:03:24,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-16 20:03:24,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:03:24,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152636960] [2021-11-16 20:03:24,646 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2021-11-16 20:03:24,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201207713] [2021-11-16 20:03:24,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:03:24,647 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:03:24,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 20:03:24,649 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 20:03:24,650 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 20:03:24,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:03:24,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-16 20:03:24,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 20:03:25,024 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2021-11-16 20:03:25,025 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-16 20:03:25,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201207713] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 20:03:25,026 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 20:03:25,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-16 20:03:25,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848691955] [2021-11-16 20:03:25,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 20:03:25,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-16 20:03:25,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:03:25,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-16 20:03:25,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 20:03:25,056 INFO L87 Difference]: Start difference. First operand has 105 states, 64 states have (on average 1.171875) internal successors, (75), 65 states have internal predecessors, (75), 30 states have call successors, (30), 9 states have call predecessors, (30), 9 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-16 20:03:25,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:03:25,102 INFO L93 Difference]: Finished difference Result 207 states and 288 transitions. [2021-11-16 20:03:25,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-16 20:03:25,104 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 89 [2021-11-16 20:03:25,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:03:25,112 INFO L225 Difference]: With dead ends: 207 [2021-11-16 20:03:25,113 INFO L226 Difference]: Without dead ends: 97 [2021-11-16 20:03:25,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 20:03:25,124 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-16 20:03:25,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-16 20:03:25,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-11-16 20:03:25,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2021-11-16 20:03:25,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 58 states have (on average 1.1379310344827587) internal successors, (66), 59 states have internal predecessors, (66), 30 states have call successors, (30), 9 states have call predecessors, (30), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-16 20:03:25,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 124 transitions. [2021-11-16 20:03:25,180 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 124 transitions. Word has length 89 [2021-11-16 20:03:25,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:03:25,181 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 124 transitions. [2021-11-16 20:03:25,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-16 20:03:25,182 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 124 transitions. [2021-11-16 20:03:25,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-16 20:03:25,185 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:03:25,186 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 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] [2021-11-16 20:03:25,214 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 20:03:25,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-16 20:03:25,400 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:03:25,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:03:25,400 INFO L85 PathProgramCache]: Analyzing trace with hash -2112535568, now seen corresponding path program 1 times [2021-11-16 20:03:25,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:03:25,401 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718092011] [2021-11-16 20:03:25,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:03:25,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:03:25,428 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-16 20:03:25,429 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1339780933] [2021-11-16 20:03:25,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:03:25,429 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:03:25,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 20:03:25,434 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 20:03:25,435 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 20:03:25,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:03:25,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-16 20:03:25,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 20:03:25,817 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-11-16 20:03:25,817 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-16 20:03:25,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:03:25,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718092011] [2021-11-16 20:03:25,818 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-16 20:03:25,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339780933] [2021-11-16 20:03:25,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339780933] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 20:03:25,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 20:03:25,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-16 20:03:25,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294699815] [2021-11-16 20:03:25,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 20:03:25,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-16 20:03:25,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:03:25,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-16 20:03:25,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-16 20:03:25,821 INFO L87 Difference]: Start difference. First operand 97 states and 124 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 4 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-16 20:03:26,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:03:26,054 INFO L93 Difference]: Finished difference Result 166 states and 207 transitions. [2021-11-16 20:03:26,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-16 20:03:26,054 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 4 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) Word has length 89 [2021-11-16 20:03:26,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:03:26,057 INFO L225 Difference]: With dead ends: 166 [2021-11-16 20:03:26,058 INFO L226 Difference]: Without dead ends: 97 [2021-11-16 20:03:26,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-11-16 20:03:26,062 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 143 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-16 20:03:26,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 364 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-16 20:03:26,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-11-16 20:03:26,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2021-11-16 20:03:26,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 58 states have (on average 1.1206896551724137) internal successors, (65), 59 states have internal predecessors, (65), 30 states have call successors, (30), 9 states have call predecessors, (30), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-11-16 20:03:26,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 123 transitions. [2021-11-16 20:03:26,087 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 123 transitions. Word has length 89 [2021-11-16 20:03:26,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:03:26,090 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 123 transitions. [2021-11-16 20:03:26,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 4 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-16 20:03:26,090 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 123 transitions. [2021-11-16 20:03:26,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-16 20:03:26,097 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:03:26,097 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:03:26,124 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 20:03:26,319 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,SelfDestructingSolverStorable1 [2021-11-16 20:03:26,320 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:03:26,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:03:26,320 INFO L85 PathProgramCache]: Analyzing trace with hash 778634374, now seen corresponding path program 1 times [2021-11-16 20:03:26,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:03:26,320 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292259857] [2021-11-16 20:03:26,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:03:26,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:03:26,348 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-16 20:03:26,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1957976627] [2021-11-16 20:03:26,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:03:26,349 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:03:26,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 20:03:26,350 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 20:03:26,374 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 20:03:26,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:03:26,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-16 20:03:26,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 20:03:26,797 INFO L388 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 18 treesize of output 14 [2021-11-16 20:03:28,948 WARN L860 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| (select (select |c_#memory_$Pointer$.base| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset|))) |c_#memory_$Pointer$.base|)) is different from true [2021-11-16 20:04:01,629 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-11-16 20:04:01,629 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-16 20:04:01,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:04:01,630 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292259857] [2021-11-16 20:04:01,630 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-16 20:04:01,630 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957976627] [2021-11-16 20:04:01,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957976627] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 20:04:01,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 20:04:01,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-11-16 20:04:01,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808488840] [2021-11-16 20:04:01,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 20:04:01,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-16 20:04:01,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:04:01,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-16 20:04:01,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=190, Unknown=13, NotChecked=28, Total=272 [2021-11-16 20:04:01,632 INFO L87 Difference]: Start difference. First operand 97 states and 123 transitions. Second operand has 17 states, 15 states have (on average 2.466666666666667) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (16), 7 states have call predecessors, (16), 6 states have call successors, (16) [2021-11-16 20:04:09,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:04:09,993 INFO L93 Difference]: Finished difference Result 184 states and 229 transitions. [2021-11-16 20:04:09,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-16 20:04:09,994 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 2.466666666666667) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (16), 7 states have call predecessors, (16), 6 states have call successors, (16) Word has length 104 [2021-11-16 20:04:09,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:04:09,996 INFO L225 Difference]: With dead ends: 184 [2021-11-16 20:04:09,996 INFO L226 Difference]: Without dead ends: 114 [2021-11-16 20:04:09,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 42.7s TimeCoverageRelationStatistics Valid=53, Invalid=240, Unknown=17, NotChecked=32, Total=342 [2021-11-16 20:04:09,997 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 68 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 336 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-16 20:04:09,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 743 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 110 Invalid, 0 Unknown, 336 Unchecked, 0.2s Time] [2021-11-16 20:04:09,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-11-16 20:04:10,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 110. [2021-11-16 20:04:10,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 68 states have (on average 1.1323529411764706) internal successors, (77), 68 states have internal predecessors, (77), 32 states have call successors, (32), 11 states have call predecessors, (32), 9 states have return successors, (31), 30 states have call predecessors, (31), 30 states have call successors, (31) [2021-11-16 20:04:10,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 140 transitions. [2021-11-16 20:04:10,020 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 140 transitions. Word has length 104 [2021-11-16 20:04:10,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:04:10,022 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 140 transitions. [2021-11-16 20:04:10,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 2.466666666666667) internal successors, (37), 15 states have internal predecessors, (37), 7 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (16), 7 states have call predecessors, (16), 6 states have call successors, (16) [2021-11-16 20:04:10,023 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 140 transitions. [2021-11-16 20:04:10,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-16 20:04:10,028 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:04:10,029 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:04:10,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-16 20:04:10,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:04:10,254 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:04:10,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:04:10,255 INFO L85 PathProgramCache]: Analyzing trace with hash 385607364, now seen corresponding path program 1 times [2021-11-16 20:04:10,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:04:10,255 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380374907] [2021-11-16 20:04:10,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:04:10,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:04:10,279 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-16 20:04:10,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1333063869] [2021-11-16 20:04:10,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:04:10,281 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:04:10,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 20:04:10,282 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) [2021-11-16 20:04:10,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-16 20:04:10,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:04:10,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 598 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-16 20:04:10,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 20:04:10,619 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2021-11-16 20:04:10,620 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-16 20:04:10,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:04:10,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380374907] [2021-11-16 20:04:10,620 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-16 20:04:10,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333063869] [2021-11-16 20:04:10,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333063869] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 20:04:10,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 20:04:10,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-16 20:04:10,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469807111] [2021-11-16 20:04:10,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 20:04:10,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-16 20:04:10,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:04:10,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-16 20:04:10,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-16 20:04:10,623 INFO L87 Difference]: Start difference. First operand 110 states and 140 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2021-11-16 20:04:10,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:04:10,649 INFO L93 Difference]: Finished difference Result 182 states and 228 transitions. [2021-11-16 20:04:10,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-16 20:04:10,650 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 104 [2021-11-16 20:04:10,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:04:10,652 INFO L225 Difference]: With dead ends: 182 [2021-11-16 20:04:10,652 INFO L226 Difference]: Without dead ends: 115 [2021-11-16 20:04:10,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-16 20:04:10,653 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 7 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 361 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 [2021-11-16 20:04:10,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 361 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-16 20:04:10,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-11-16 20:04:10,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 110. [2021-11-16 20:04:10,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 68 states have (on average 1.1323529411764706) internal successors, (77), 68 states have internal predecessors, (77), 32 states have call successors, (32), 11 states have call predecessors, (32), 9 states have return successors, (31), 30 states have call predecessors, (31), 30 states have call successors, (31) [2021-11-16 20:04:10,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 140 transitions. [2021-11-16 20:04:10,663 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 140 transitions. Word has length 104 [2021-11-16 20:04:10,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:04:10,664 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 140 transitions. [2021-11-16 20:04:10,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2021-11-16 20:04:10,664 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 140 transitions. [2021-11-16 20:04:10,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-16 20:04:10,665 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:04:10,665 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:04:10,688 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-16 20:04:10,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:04:10,879 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:04:10,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:04:10,880 INFO L85 PathProgramCache]: Analyzing trace with hash -814904288, now seen corresponding path program 1 times [2021-11-16 20:04:10,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:04:10,880 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283901149] [2021-11-16 20:04:10,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:04:10,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:04:10,907 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-16 20:04:10,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1633939749] [2021-11-16 20:04:10,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:04:10,907 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:04:10,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 20:04:10,909 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) [2021-11-16 20:04:10,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-16 20:04:11,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:04:11,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 100 conjunts are in the unsatisfiable core [2021-11-16 20:04:11,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 20:04:11,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:04:11,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:04:11,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:04:11,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 29 [2021-11-16 20:04:17,532 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-16 20:04:17,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 99 treesize of output 63 [2021-11-16 20:04:17,717 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 35 proven. 27 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2021-11-16 20:04:17,718 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-16 20:04:20,564 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_aws_mul_size_checked_aws_mul_u64_checked_~b#1_11| Int) (|v_aws_mul_size_checked_#in~r#1.base_7| Int)) (let ((.cse0 (* |v_aws_mul_size_checked_aws_mul_u64_checked_~b#1_11| (select (select |c_#memory_int| |c_ULTIMATE.start_aws_array_list_init_static_~list#1.base|) (+ 16 |c_ULTIMATE.start_aws_array_list_init_static_~list#1.offset|))))) (<= (mod .cse0 18446744073709551616) (mod (select (select (store |c_#memory_int| |v_aws_mul_size_checked_#in~r#1.base_7| (store (select |c_#memory_int| |v_aws_mul_size_checked_#in~r#1.base_7|) 0 .cse0)) |c_ULTIMATE.start_aws_array_list_init_static_~list#1.base|) (+ |c_ULTIMATE.start_aws_array_list_init_static_~list#1.offset| 8)) 18446744073709551616)))) (forall ((|v_aws_mul_size_checked_aws_mul_u64_checked_~b#1_11| Int) (|v_aws_mul_size_checked_#in~r#1.base_7| Int)) (let ((.cse2 (* |v_aws_mul_size_checked_aws_mul_u64_checked_~b#1_11| (select (select |c_#memory_int| |c_ULTIMATE.start_aws_array_list_init_static_~list#1.base|) (+ 16 |c_ULTIMATE.start_aws_array_list_init_static_~list#1.offset|))))) (let ((.cse1 (select (store |c_#memory_int| |v_aws_mul_size_checked_#in~r#1.base_7| (store (select |c_#memory_int| |v_aws_mul_size_checked_#in~r#1.base_7|) 0 .cse2)) |c_ULTIMATE.start_aws_array_list_init_static_~list#1.base|))) (or (< (mod (select .cse1 (+ |c_ULTIMATE.start_aws_array_list_init_static_~list#1.offset| 8)) 18446744073709551616) (mod .cse2 18446744073709551616)) (not (= (mod (select .cse1 (+ |c_ULTIMATE.start_aws_array_list_init_static_~list#1.offset| 24)) 18446744073709551616) 0))))))) is different from false [2021-11-16 20:04:20,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:04:20,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283901149] [2021-11-16 20:04:20,569 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-16 20:04:20,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633939749] [2021-11-16 20:04:20,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633939749] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-16 20:04:20,569 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-16 20:04:20,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2021-11-16 20:04:20,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930328197] [2021-11-16 20:04:20,569 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-16 20:04:20,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-16 20:04:20,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:04:20,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-16 20:04:20,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=798, Unknown=3, NotChecked=56, Total=930 [2021-11-16 20:04:20,571 INFO L87 Difference]: Start difference. First operand 110 states and 140 transitions. Second operand has 27 states, 23 states have (on average 2.0434782608695654) internal successors, (47), 22 states have internal predecessors, (47), 9 states have call successors, (17), 3 states have call predecessors, (17), 6 states have return successors, (17), 9 states have call predecessors, (17), 8 states have call successors, (17) [2021-11-16 20:04:21,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:04:21,788 INFO L93 Difference]: Finished difference Result 169 states and 223 transitions. [2021-11-16 20:04:21,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-16 20:04:21,789 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 23 states have (on average 2.0434782608695654) internal successors, (47), 22 states have internal predecessors, (47), 9 states have call successors, (17), 3 states have call predecessors, (17), 6 states have return successors, (17), 9 states have call predecessors, (17), 8 states have call successors, (17) Word has length 106 [2021-11-16 20:04:21,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:04:21,791 INFO L225 Difference]: With dead ends: 169 [2021-11-16 20:04:21,791 INFO L226 Difference]: Without dead ends: 167 [2021-11-16 20:04:21,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=143, Invalid=1580, Unknown=3, NotChecked=80, Total=1806 [2021-11-16 20:04:21,792 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 99 mSDsluCounter, 1535 mSDsCounter, 0 mSdLazyCounter, 1077 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 1995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 831 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-16 20:04:21,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 1665 Invalid, 1995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1077 Invalid, 0 Unknown, 831 Unchecked, 0.9s Time] [2021-11-16 20:04:21,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-11-16 20:04:21,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 129. [2021-11-16 20:04:21,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 83 states have (on average 1.144578313253012) internal successors, (95), 84 states have internal predecessors, (95), 33 states have call successors, (33), 12 states have call predecessors, (33), 12 states have return successors, (37), 32 states have call predecessors, (37), 31 states have call successors, (37) [2021-11-16 20:04:21,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 165 transitions. [2021-11-16 20:04:21,809 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 165 transitions. Word has length 106 [2021-11-16 20:04:21,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:04:21,809 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 165 transitions. [2021-11-16 20:04:21,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 23 states have (on average 2.0434782608695654) internal successors, (47), 22 states have internal predecessors, (47), 9 states have call successors, (17), 3 states have call predecessors, (17), 6 states have return successors, (17), 9 states have call predecessors, (17), 8 states have call successors, (17) [2021-11-16 20:04:21,810 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 165 transitions. [2021-11-16 20:04:21,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-16 20:04:21,811 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:04:21,811 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:04:21,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-16 20:04:22,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:04:22,028 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:04:22,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:04:22,028 INFO L85 PathProgramCache]: Analyzing trace with hash -134845918, now seen corresponding path program 1 times [2021-11-16 20:04:22,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:04:22,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781837904] [2021-11-16 20:04:22,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:04:22,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:04:22,050 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-16 20:04:22,051 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1141400501] [2021-11-16 20:04:22,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:04:22,051 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:04:22,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 20:04:22,055 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) [2021-11-16 20:04:22,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-16 20:04:22,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:04:22,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-16 20:04:22,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 20:04:22,440 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2021-11-16 20:04:22,441 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-16 20:04:22,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:04:22,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781837904] [2021-11-16 20:04:22,441 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-16 20:04:22,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141400501] [2021-11-16 20:04:22,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141400501] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 20:04:22,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 20:04:22,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-16 20:04:22,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8525254] [2021-11-16 20:04:22,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 20:04:22,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-16 20:04:22,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:04:22,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-16 20:04:22,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-16 20:04:22,444 INFO L87 Difference]: Start difference. First operand 129 states and 165 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2021-11-16 20:04:22,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:04:22,566 INFO L93 Difference]: Finished difference Result 227 states and 284 transitions. [2021-11-16 20:04:22,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-16 20:04:22,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 106 [2021-11-16 20:04:22,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:04:22,568 INFO L225 Difference]: With dead ends: 227 [2021-11-16 20:04:22,569 INFO L226 Difference]: Without dead ends: 144 [2021-11-16 20:04:22,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-16 20:04:22,570 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 16 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-16 20:04:22,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 425 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-16 20:04:22,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-11-16 20:04:22,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 133. [2021-11-16 20:04:22,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 87 states have (on average 1.1379310344827587) internal successors, (99), 88 states have internal predecessors, (99), 33 states have call successors, (33), 12 states have call predecessors, (33), 12 states have return successors, (37), 32 states have call predecessors, (37), 31 states have call successors, (37) [2021-11-16 20:04:22,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 169 transitions. [2021-11-16 20:04:22,583 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 169 transitions. Word has length 106 [2021-11-16 20:04:22,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:04:22,583 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 169 transitions. [2021-11-16 20:04:22,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2021-11-16 20:04:22,584 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 169 transitions. [2021-11-16 20:04:22,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-16 20:04:22,585 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:04:22,585 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:04:22,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-16 20:04:22,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:04:22,809 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:04:22,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:04:22,809 INFO L85 PathProgramCache]: Analyzing trace with hash 123319520, now seen corresponding path program 1 times [2021-11-16 20:04:22,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:04:22,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101254713] [2021-11-16 20:04:22,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:04:22,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:04:22,824 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-16 20:04:22,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1856518630] [2021-11-16 20:04:22,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:04:22,824 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:04:22,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 20:04:22,826 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) [2021-11-16 20:04:22,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-16 20:04:23,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:04:23,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 165 conjunts are in the unsatisfiable core [2021-11-16 20:04:23,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 20:04:23,055 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-16 20:04:23,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 19 treesize of output 18 [2021-11-16 20:04:23,513 INFO L388 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 13 treesize of output 9 [2021-11-16 20:04:23,635 INFO L354 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2021-11-16 20:04:23,636 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 4 case distinctions, treesize of input 22 treesize of output 25 [2021-11-16 20:04:24,140 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-11-16 20:04:24,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 31 [2021-11-16 20:04:24,528 INFO L354 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2021-11-16 20:04:24,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 22 treesize of output 42 [2021-11-16 20:04:24,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 62 [2021-11-16 20:04:24,726 INFO L354 Elim1Store]: treesize reduction 120, result has 23.6 percent of original size [2021-11-16 20:04:24,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 59 treesize of output 84 [2021-11-16 20:04:28,940 INFO L388 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 13 treesize of output 9 [2021-11-16 20:04:29,292 INFO L354 Elim1Store]: treesize reduction 136, result has 13.4 percent of original size [2021-11-16 20:04:29,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 55 treesize of output 64 [2021-11-16 20:04:35,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:04:35,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:04:35,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:04:35,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:04:35,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:04:35,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:04:35,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 51 [2021-11-16 20:04:37,045 WARN L860 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~b#1| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~a#1| Int)) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| (store (select |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| (* |aws_mul_size_checked_aws_mul_u64_checked_~b#1| |aws_mul_size_checked_aws_mul_u64_checked_~a#1|))))) is different from true [2021-11-16 20:04:40,644 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 24 proven. 113 refuted. 0 times theorem prover too weak. 28 trivial. 6 not checked. [2021-11-16 20:04:40,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-16 20:04:41,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:04:41,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101254713] [2021-11-16 20:04:41,905 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-16 20:04:41,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856518630] [2021-11-16 20:04:41,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856518630] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-16 20:04:41,906 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-16 20:04:41,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2021-11-16 20:04:41,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27982340] [2021-11-16 20:04:41,906 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-16 20:04:41,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-11-16 20:04:41,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:04:41,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-11-16 20:04:41,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=1125, Unknown=2, NotChecked=68, Total=1332 [2021-11-16 20:04:41,908 INFO L87 Difference]: Start difference. First operand 133 states and 169 transitions. Second operand has 36 states, 30 states have (on average 1.9666666666666666) internal successors, (59), 29 states have internal predecessors, (59), 12 states have call successors, (18), 11 states have call predecessors, (18), 13 states have return successors, (17), 11 states have call predecessors, (17), 11 states have call successors, (17) [2021-11-16 20:04:50,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:04:50,772 INFO L93 Difference]: Finished difference Result 299 states and 366 transitions. [2021-11-16 20:04:50,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-11-16 20:04:50,772 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 30 states have (on average 1.9666666666666666) internal successors, (59), 29 states have internal predecessors, (59), 12 states have call successors, (18), 11 states have call predecessors, (18), 13 states have return successors, (17), 11 states have call predecessors, (17), 11 states have call successors, (17) Word has length 106 [2021-11-16 20:04:50,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:04:50,775 INFO L225 Difference]: With dead ends: 299 [2021-11-16 20:04:50,775 INFO L226 Difference]: Without dead ends: 209 [2021-11-16 20:04:50,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 69 SyntacticMatches, 15 SemanticMatches, 48 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 957 ImplicationChecksByTransitivity, 16.4s TimeCoverageRelationStatistics Valid=256, Invalid=2093, Unknown=7, NotChecked=94, Total=2450 [2021-11-16 20:04:50,777 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 46 mSDsluCounter, 979 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 1839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1291 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-16 20:04:50,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 1093 Invalid, 1839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 508 Invalid, 0 Unknown, 1291 Unchecked, 0.4s Time] [2021-11-16 20:04:50,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2021-11-16 20:04:50,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 202. [2021-11-16 20:04:50,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 133 states have (on average 1.1278195488721805) internal successors, (150), 134 states have internal predecessors, (150), 46 states have call successors, (46), 22 states have call predecessors, (46), 22 states have return successors, (54), 45 states have call predecessors, (54), 44 states have call successors, (54) [2021-11-16 20:04:50,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 250 transitions. [2021-11-16 20:04:50,792 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 250 transitions. Word has length 106 [2021-11-16 20:04:50,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:04:50,793 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 250 transitions. [2021-11-16 20:04:50,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 30 states have (on average 1.9666666666666666) internal successors, (59), 29 states have internal predecessors, (59), 12 states have call successors, (18), 11 states have call predecessors, (18), 13 states have return successors, (17), 11 states have call predecessors, (17), 11 states have call successors, (17) [2021-11-16 20:04:50,793 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 250 transitions. [2021-11-16 20:04:50,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-16 20:04:50,794 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:04:50,795 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:04:50,818 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-16 20:04:51,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:04:51,007 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:04:51,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:04:51,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1358926198, now seen corresponding path program 1 times [2021-11-16 20:04:51,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:04:51,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129244751] [2021-11-16 20:04:51,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:04:51,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:04:51,022 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-16 20:04:51,022 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [39883100] [2021-11-16 20:04:51,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:04:51,023 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:04:51,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 20:04:51,024 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) [2021-11-16 20:04:51,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-16 20:04:51,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:04:51,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-16 20:04:51,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 20:04:51,423 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 45 proven. 18 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-11-16 20:04:51,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-16 20:04:51,848 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 27 proven. 3 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2021-11-16 20:04:51,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:04:51,848 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129244751] [2021-11-16 20:04:51,848 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-16 20:04:51,848 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39883100] [2021-11-16 20:04:51,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39883100] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-16 20:04:51,848 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-16 20:04:51,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 19 [2021-11-16 20:04:51,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625052816] [2021-11-16 20:04:51,849 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-16 20:04:51,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-16 20:04:51,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:04:51,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-16 20:04:51,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2021-11-16 20:04:51,850 INFO L87 Difference]: Start difference. First operand 202 states and 250 transitions. Second operand has 19 states, 17 states have (on average 4.176470588235294) internal successors, (71), 14 states have internal predecessors, (71), 5 states have call successors, (22), 3 states have call predecessors, (22), 7 states have return successors, (23), 7 states have call predecessors, (23), 4 states have call successors, (23) [2021-11-16 20:04:52,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:04:52,187 INFO L93 Difference]: Finished difference Result 316 states and 387 transitions. [2021-11-16 20:04:52,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-16 20:04:52,187 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 4.176470588235294) internal successors, (71), 14 states have internal predecessors, (71), 5 states have call successors, (22), 3 states have call predecessors, (22), 7 states have return successors, (23), 7 states have call predecessors, (23), 4 states have call successors, (23) Word has length 112 [2021-11-16 20:04:52,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:04:52,189 INFO L225 Difference]: With dead ends: 316 [2021-11-16 20:04:52,189 INFO L226 Difference]: Without dead ends: 202 [2021-11-16 20:04:52,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 204 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2021-11-16 20:04:52,190 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 8 mSDsluCounter, 1823 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1936 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-16 20:04:52,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 1936 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-16 20:04:52,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-11-16 20:04:52,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2021-11-16 20:04:52,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 133 states have (on average 1.1278195488721805) internal successors, (150), 134 states have internal predecessors, (150), 46 states have call successors, (46), 22 states have call predecessors, (46), 22 states have return successors, (52), 45 states have call predecessors, (52), 44 states have call successors, (52) [2021-11-16 20:04:52,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 248 transitions. [2021-11-16 20:04:52,215 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 248 transitions. Word has length 112 [2021-11-16 20:04:52,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:04:52,215 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 248 transitions. [2021-11-16 20:04:52,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 4.176470588235294) internal successors, (71), 14 states have internal predecessors, (71), 5 states have call successors, (22), 3 states have call predecessors, (22), 7 states have return successors, (23), 7 states have call predecessors, (23), 4 states have call successors, (23) [2021-11-16 20:04:52,216 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 248 transitions. [2021-11-16 20:04:52,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-16 20:04:52,217 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:04:52,217 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 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] [2021-11-16 20:04:52,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-16 20:04:52,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-16 20:04:52,428 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:04:52,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:04:52,429 INFO L85 PathProgramCache]: Analyzing trace with hash -407885584, now seen corresponding path program 1 times [2021-11-16 20:04:52,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:04:52,429 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559312368] [2021-11-16 20:04:52,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:04:52,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:04:52,449 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-16 20:04:52,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [918306081] [2021-11-16 20:04:52,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:04:52,452 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:04:52,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 20:04:52,453 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) [2021-11-16 20:04:52,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-16 20:04:52,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:04:52,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-16 20:04:52,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 20:04:52,820 INFO L388 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 18 treesize of output 14 [2021-11-16 20:04:52,998 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-11-16 20:04:52,999 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-16 20:04:52,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:04:52,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559312368] [2021-11-16 20:04:52,999 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-16 20:04:52,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918306081] [2021-11-16 20:04:52,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918306081] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 20:04:52,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 20:04:52,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-16 20:04:53,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080901011] [2021-11-16 20:04:53,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 20:04:53,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-16 20:04:53,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:04:53,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-16 20:04:53,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-11-16 20:04:53,001 INFO L87 Difference]: Start difference. First operand 202 states and 248 transitions. Second operand has 13 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 7 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) [2021-11-16 20:04:53,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:04:53,658 INFO L93 Difference]: Finished difference Result 322 states and 402 transitions. [2021-11-16 20:04:53,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-16 20:04:53,658 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 7 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) Word has length 110 [2021-11-16 20:04:53,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:04:53,660 INFO L225 Difference]: With dead ends: 322 [2021-11-16 20:04:53,660 INFO L226 Difference]: Without dead ends: 233 [2021-11-16 20:04:53,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2021-11-16 20:04:53,661 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 107 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-16 20:04:53,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 685 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-16 20:04:53,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2021-11-16 20:04:53,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 206. [2021-11-16 20:04:53,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 136 states have (on average 1.125) internal successors, (153), 138 states have internal predecessors, (153), 46 states have call successors, (46), 22 states have call predecessors, (46), 23 states have return successors, (54), 45 states have call predecessors, (54), 44 states have call successors, (54) [2021-11-16 20:04:53,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 253 transitions. [2021-11-16 20:04:53,676 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 253 transitions. Word has length 110 [2021-11-16 20:04:53,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:04:53,677 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 253 transitions. [2021-11-16 20:04:53,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 7 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) [2021-11-16 20:04:53,677 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 253 transitions. [2021-11-16 20:04:53,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-16 20:04:53,678 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:04:53,678 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:04:53,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-16 20:04:53,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:04:53,887 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:04:53,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:04:53,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1994785802, now seen corresponding path program 2 times [2021-11-16 20:04:53,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:04:53,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375786757] [2021-11-16 20:04:53,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:04:53,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:04:53,911 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-16 20:04:53,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [727680833] [2021-11-16 20:04:53,911 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-16 20:04:53,911 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:04:53,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 20:04:53,912 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) [2021-11-16 20:04:53,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-16 20:04:54,137 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-16 20:04:54,137 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-16 20:04:54,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-16 20:04:54,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 20:04:54,383 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-11-16 20:04:54,383 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-16 20:04:54,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:04:54,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375786757] [2021-11-16 20:04:54,384 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-16 20:04:54,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727680833] [2021-11-16 20:04:54,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727680833] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 20:04:54,384 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 20:04:54,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-16 20:04:54,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082163024] [2021-11-16 20:04:54,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 20:04:54,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-16 20:04:54,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:04:54,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-16 20:04:54,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-11-16 20:04:54,386 INFO L87 Difference]: Start difference. First operand 206 states and 253 transitions. Second operand has 11 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 4 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-16 20:04:54,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:04:54,700 INFO L93 Difference]: Finished difference Result 340 states and 418 transitions. [2021-11-16 20:04:54,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-16 20:04:54,701 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 4 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) Word has length 112 [2021-11-16 20:04:54,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:04:54,703 INFO L225 Difference]: With dead ends: 340 [2021-11-16 20:04:54,703 INFO L226 Difference]: Without dead ends: 195 [2021-11-16 20:04:54,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2021-11-16 20:04:54,705 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 112 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-16 20:04:54,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 664 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-16 20:04:54,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-11-16 20:04:54,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2021-11-16 20:04:54,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 129 states have (on average 1.124031007751938) internal successors, (145), 132 states have internal predecessors, (145), 43 states have call successors, (43), 21 states have call predecessors, (43), 22 states have return successors, (50), 41 states have call predecessors, (50), 41 states have call successors, (50) [2021-11-16 20:04:54,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 238 transitions. [2021-11-16 20:04:54,727 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 238 transitions. Word has length 112 [2021-11-16 20:04:54,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:04:54,727 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 238 transitions. [2021-11-16 20:04:54,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 4 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-16 20:04:54,728 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 238 transitions. [2021-11-16 20:04:54,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-16 20:04:54,729 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:04:54,730 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:04:54,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-16 20:04:54,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-16 20:04:54,947 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:04:54,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:04:54,948 INFO L85 PathProgramCache]: Analyzing trace with hash 945169320, now seen corresponding path program 1 times [2021-11-16 20:04:54,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:04:54,948 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906041325] [2021-11-16 20:04:54,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:04:54,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:04:54,976 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-16 20:04:54,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1309823772] [2021-11-16 20:04:54,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:04:54,982 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:04:54,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 20:04:54,983 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) [2021-11-16 20:04:54,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-16 20:04:55,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 20:04:55,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 110 conjunts are in the unsatisfiable core [2021-11-16 20:04:55,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 20:04:55,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:04:55,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:04:55,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-16 20:04:55,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 29 [2021-11-16 20:04:55,548 INFO L388 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 18 treesize of output 14 [2021-11-16 20:05:05,799 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-16 20:05:05,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 144 treesize of output 104 [2021-11-16 20:05:05,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 69 [2021-11-16 20:05:06,132 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 39 proven. 24 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-16 20:05:06,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-16 20:05:13,633 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_aws_mul_size_checked_aws_mul_u64_checked_~b#1_35| Int) (|v_aws_mul_size_checked_#in~r#1.base_25| Int)) (let ((.cse2 (* |v_aws_mul_size_checked_aws_mul_u64_checked_~b#1_35| (select (select |c_#memory_int| |c_ULTIMATE.start_aws_array_list_init_static_~list#1.base|) (+ 16 |c_ULTIMATE.start_aws_array_list_init_static_~list#1.offset|))))) (let ((.cse1 (select (store |c_#memory_int| |v_aws_mul_size_checked_#in~r#1.base_25| (store (select |c_#memory_int| |v_aws_mul_size_checked_#in~r#1.base_25|) 0 .cse2)) |c_ULTIMATE.start_aws_array_list_init_static_~list#1.base|))) (let ((.cse0 (mod (select .cse1 (+ |c_ULTIMATE.start_aws_array_list_init_static_~list#1.offset| 8)) 18446744073709551616))) (or (= .cse0 0) (and (forall ((v_DerPreprocessor_2 Int)) (not (= (select (select (store |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_#in~r#1.base_25| (store (select |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_#in~r#1.base_25|) 0 v_DerPreprocessor_2)) |c_ULTIMATE.start_aws_array_list_init_static_~list#1.base|) (+ 32 |c_ULTIMATE.start_aws_array_list_init_static_~list#1.offset|)) 0))) (not (= (mod (select .cse1 (+ |c_ULTIMATE.start_aws_array_list_init_static_~list#1.offset| 24)) 18446744073709551616) 0)) (<= (mod .cse2 18446744073709551616) .cse0))))))) is different from false [2021-11-16 20:05:13,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 20:05:13,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906041325] [2021-11-16 20:05:13,671 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-16 20:05:13,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309823772] [2021-11-16 20:05:13,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309823772] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-16 20:05:13,671 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-16 20:05:13,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2021-11-16 20:05:13,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379990908] [2021-11-16 20:05:13,671 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-16 20:05:13,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-16 20:05:13,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 20:05:13,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-16 20:05:13,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=917, Unknown=1, NotChecked=60, Total=1056 [2021-11-16 20:05:13,672 INFO L87 Difference]: Start difference. First operand 195 states and 238 transitions. Second operand has 29 states, 25 states have (on average 1.88) internal successors, (47), 24 states have internal predecessors, (47), 10 states have call successors, (18), 3 states have call predecessors, (18), 6 states have return successors, (17), 10 states have call predecessors, (17), 9 states have call successors, (17) [2021-11-16 20:05:16,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 20:05:16,952 INFO L93 Difference]: Finished difference Result 244 states and 302 transitions. [2021-11-16 20:05:16,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-16 20:05:16,953 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 25 states have (on average 1.88) internal successors, (47), 24 states have internal predecessors, (47), 10 states have call successors, (18), 3 states have call predecessors, (18), 6 states have return successors, (17), 10 states have call predecessors, (17), 9 states have call successors, (17) Word has length 113 [2021-11-16 20:05:16,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 20:05:16,954 INFO L225 Difference]: With dead ends: 244 [2021-11-16 20:05:16,954 INFO L226 Difference]: Without dead ends: 242 [2021-11-16 20:05:16,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=142, Invalid=1753, Unknown=1, NotChecked=84, Total=1980 [2021-11-16 20:05:16,956 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 111 mSDsluCounter, 1761 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 1890 SdHoareTripleChecker+Invalid, 2788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1218 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-16 20:05:16,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 1890 Invalid, 2788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1478 Invalid, 0 Unknown, 1218 Unchecked, 1.1s Time] [2021-11-16 20:05:16,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-11-16 20:05:16,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 195. [2021-11-16 20:05:16,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 129 states have (on average 1.124031007751938) internal successors, (145), 132 states have internal predecessors, (145), 43 states have call successors, (43), 21 states have call predecessors, (43), 22 states have return successors, (49), 41 states have call predecessors, (49), 41 states have call successors, (49) [2021-11-16 20:05:16,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 237 transitions. [2021-11-16 20:05:16,969 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 237 transitions. Word has length 113 [2021-11-16 20:05:16,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 20:05:16,970 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 237 transitions. [2021-11-16 20:05:16,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 25 states have (on average 1.88) internal successors, (47), 24 states have internal predecessors, (47), 10 states have call successors, (18), 3 states have call predecessors, (18), 6 states have return successors, (17), 10 states have call predecessors, (17), 9 states have call successors, (17) [2021-11-16 20:05:16,970 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 237 transitions. [2021-11-16 20:05:16,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-16 20:05:16,971 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 20:05:16,971 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:05:17,006 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-16 20:05:17,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-16 20:05:17,203 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 20:05:17,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 20:05:17,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1400716810, now seen corresponding path program 1 times [2021-11-16 20:05:17,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 20:05:17,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363542980] [2021-11-16 20:05:17,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:05:17,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 20:05:17,223 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-16 20:05:17,223 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1139528008] [2021-11-16 20:05:17,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 20:05:17,224 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-16 20:05:17,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 20:05:17,225 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-16 20:05:17,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-16 20:05:22,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-16 20:05:22,784 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-16 20:05:23,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-16 20:05:23,273 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-16 20:05:23,273 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-16 20:05:23,274 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-16 20:05:23,288 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-16 20:05:23,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-16 20:05:23,488 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 20:05:23,490 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-16 20:05:23,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 08:05:23 BoogieIcfgContainer [2021-11-16 20:05:23,593 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-16 20:05:23,594 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-16 20:05:23,594 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-16 20:05:23,594 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-16 20:05:23,594 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:03:24" (3/4) ... [2021-11-16 20:05:23,596 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-16 20:05:23,683 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-11-16 20:05:23,683 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-16 20:05:23,684 INFO L158 Benchmark]: Toolchain (without parser) took 121974.15ms. Allocated memory was 142.6MB in the beginning and 203.4MB in the end (delta: 60.8MB). Free memory was 103.5MB in the beginning and 113.8MB in the end (delta: -10.4MB). Peak memory consumption was 50.2MB. Max. memory is 16.1GB. [2021-11-16 20:05:23,684 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 86.0MB. Free memory was 42.6MB in the beginning and 42.6MB in the end (delta: 40.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-16 20:05:23,684 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1760.23ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 100.3MB in the end (delta: 2.9MB). Peak memory consumption was 79.6MB. Max. memory is 16.1GB. [2021-11-16 20:05:23,688 INFO L158 Benchmark]: Boogie Procedure Inliner took 132.46ms. Allocated memory is still 142.6MB. Free memory was 100.3MB in the beginning and 94.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-16 20:05:23,688 INFO L158 Benchmark]: Boogie Preprocessor took 36.96ms. Allocated memory is still 142.6MB. Free memory was 94.0MB in the beginning and 91.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-16 20:05:23,688 INFO L158 Benchmark]: RCFGBuilder took 509.98ms. Allocated memory is still 142.6MB. Free memory was 91.1MB in the beginning and 66.8MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-16 20:05:23,689 INFO L158 Benchmark]: TraceAbstraction took 119438.29ms. Allocated memory was 142.6MB in the beginning and 203.4MB in the end (delta: 60.8MB). Free memory was 66.0MB in the beginning and 122.2MB in the end (delta: -56.3MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2021-11-16 20:05:23,689 INFO L158 Benchmark]: Witness Printer took 89.68ms. Allocated memory is still 203.4MB. Free memory was 122.2MB in the beginning and 113.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-16 20:05:23,690 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 86.0MB. Free memory was 42.6MB in the beginning and 42.6MB in the end (delta: 40.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1760.23ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 100.3MB in the end (delta: 2.9MB). Peak memory consumption was 79.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 132.46ms. Allocated memory is still 142.6MB. Free memory was 100.3MB in the beginning and 94.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.96ms. Allocated memory is still 142.6MB. Free memory was 94.0MB in the beginning and 91.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 509.98ms. Allocated memory is still 142.6MB. Free memory was 91.1MB in the beginning and 66.8MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 119438.29ms. Allocated memory was 142.6MB in the beginning and 203.4MB in the end (delta: 60.8MB). Free memory was 66.0MB in the beginning and 122.2MB in the end (delta: -56.3MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. * Witness Printer took 89.68ms. Allocated memory is still 203.4MB. Free memory was 122.2MB in the beginning and 113.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 223]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L2762-L2767] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L7359] static __thread int tl_last_error = 0; VAL [s_can_fail_allocator_static={6:0}, tl_last_error=0] [L7617] CALL aws_array_list_init_static_harness() [L7586] struct aws_array_list list = {0, __VERIFIER_nondet_ulong(), __VERIFIER_nondet_ulong(), __VERIFIER_nondet_ulong(), 0}; [L7589] size_t item_size; [L7590] size_t initial_item_allocation; [L7591] size_t len; VAL [len={11:0}, list={12:0}, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L7594] CALL assume_abort_if_not(initial_item_allocation > 0 && initial_item_allocation <= 9223372036854775808U) VAL [\old(cond)=1, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L7594] RET assume_abort_if_not(initial_item_allocation > 0 && initial_item_allocation <= 9223372036854775808U) VAL [initial_item_allocation=9223372036854775808, len={11:0}, list={12:0}, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L7595] CALL assume_abort_if_not(item_size > 0 && item_size <= 2) VAL [\old(cond)=1, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L7595] RET assume_abort_if_not(item_size > 0 && item_size <= 2) VAL [initial_item_allocation=9223372036854775808, item_size=2, len={11:0}, list={12:0}, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L7596] CALL, EXPR aws_mul_size_checked(initial_item_allocation, item_size, &len) VAL [\old(tl_last_error)=0, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L2588] CALL, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2496] CALL __CPROVER_overflow_mult(a, b) VAL [\old(a)=9223372036854775808, \old(b)=2, \old(tl_last_error)=0, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); VAL [\old(a)=9223372036854775808, \old(b)=2, \old(tl_last_error)=0, \result=0, a=9223372036854775808, b=2, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L2496] RET __CPROVER_overflow_mult(a, b) VAL [\old(a)=9223372036854775808, \old(b)=2, \old(tl_last_error)=0, __CPROVER_overflow_mult(a, b)=0, a=9223372036854775808, b=2, r={11:0}, r={11:0}, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L2496] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2498] *r = a * b [L2499] return (0); VAL [\old(a)=9223372036854775808, \old(b)=2, \old(tl_last_error)=0, \result=0, a=9223372036854775808, b=2, r={11:0}, r={11:0}, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L2588] RET, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2588] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L7596] RET, EXPR aws_mul_size_checked(initial_item_allocation, item_size, &len) VAL [aws_mul_size_checked(initial_item_allocation, item_size, &len)=0, initial_item_allocation=9223372036854775808, item_size=2, len={11:0}, list={12:0}, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L7596] CALL assume_abort_if_not(!aws_mul_size_checked(initial_item_allocation, item_size, &len)) VAL [\old(cond)=1, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L7596] RET assume_abort_if_not(!aws_mul_size_checked(initial_item_allocation, item_size, &len)) VAL [aws_mul_size_checked(initial_item_allocation, item_size, &len)=0, initial_item_allocation=9223372036854775808, item_size=2, len={11:0}, list={12:0}, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L7599] EXPR \read(len) VAL [\read(len)=18446744073709551616, initial_item_allocation=9223372036854775808, item_size=2, len={11:0}, list={12:0}, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L7599] CALL, EXPR bounded_malloc(len) VAL [\old(size)=0, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L2779-L2781] CALL assume_abort_if_not(size <= ( (18446744073709551615UL) >> (8 + 1))) VAL [\old(cond)=1, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L2779-L2781] RET assume_abort_if_not(size <= ( (18446744073709551615UL) >> (8 + 1))) VAL [\old(size)=0, s_can_fail_allocator_static={6:0}, size=0, tl_last_error=0] [L2782] return malloc(size); [L7599] RET, EXPR bounded_malloc(len) VAL [\read(len)=18446744073709551616, bounded_malloc(len)={-1:0}, initial_item_allocation=9223372036854775808, item_size=2, len={11:0}, list={12:0}, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L7599] uint8_t *raw_array = bounded_malloc(len); [L7600] struct store_byte_from_buffer old_byte; [L7601] EXPR \read(len) [L7601] CALL save_byte_from_array(raw_array, len, &old_byte) [L7183] COND FALSE !(size > 0 && array && storage) VAL [\old(size)=0, array={-1:0}, array={-1:0}, s_can_fail_allocator_static={6:0}, size=0, storage={10:0}, storage={10:0}, tl_last_error=0] [L7601] RET save_byte_from_array(raw_array, len, &old_byte) [L7603] CALL aws_array_list_init_static(&list, raw_array, initial_item_allocation, item_size) [L3237-L3239] CALL assume_abort_if_not((list != ((void *)0) )) VAL [\old(cond)=1, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L3237-L3239] RET assume_abort_if_not((list != ((void *)0) )) VAL [\old(item_count)=9223372036854775808, \old(item_size)=2, item_count=9223372036854775808, item_size=2, list={12:0}, list={12:0}, raw_array={-1:0}, raw_array={-1:0}, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L3240-L3242] CALL assume_abort_if_not((raw_array != ((void *)0) )) VAL [\old(cond)=1, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L3240-L3242] RET assume_abort_if_not((raw_array != ((void *)0) )) VAL [\old(item_count)=9223372036854775808, \old(item_size)=2, item_count=9223372036854775808, item_size=2, list={12:0}, list={12:0}, raw_array={-1:0}, raw_array={-1:0}, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L3243] CALL assume_abort_if_not((item_count > 0)) VAL [\old(cond)=1, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L3243] RET assume_abort_if_not((item_count > 0)) VAL [\old(item_count)=9223372036854775808, \old(item_size)=2, item_count=9223372036854775808, item_size=2, list={12:0}, list={12:0}, raw_array={-1:0}, raw_array={-1:0}, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L3244] CALL assume_abort_if_not((item_size > 0)) VAL [\old(cond)=1, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L3244] RET assume_abort_if_not((item_size > 0)) VAL [\old(item_count)=9223372036854775808, \old(item_size)=2, item_count=9223372036854775808, item_size=2, list={12:0}, list={12:0}, raw_array={-1:0}, raw_array={-1:0}, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L3246-L3247] list->alloc = ((void *)0) VAL [\old(item_count)=9223372036854775808, \old(item_size)=2, item_count=9223372036854775808, item_size=2, list={12:0}, list={12:0}, raw_array={-1:0}, raw_array={-1:0}, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L3250] CALL, EXPR aws_mul_size_checked(item_count, item_size, &list->current_size) VAL [\old(tl_last_error)=0, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L2588] CALL, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2496] CALL __CPROVER_overflow_mult(a, b) VAL [\old(a)=9223372036854775808, \old(b)=2, \old(tl_last_error)=0, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); VAL [\old(a)=9223372036854775808, \old(b)=2, \old(tl_last_error)=0, \result=0, a=9223372036854775808, b=2, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L2496] RET __CPROVER_overflow_mult(a, b) VAL [\old(a)=9223372036854775808, \old(b)=2, \old(tl_last_error)=0, __CPROVER_overflow_mult(a, b)=0, a=9223372036854775808, b=2, r={12:8}, r={12:8}, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L2496] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2498] *r = a * b [L2499] return (0); VAL [\old(a)=9223372036854775808, \old(b)=2, \old(tl_last_error)=0, \result=0, a=9223372036854775808, b=2, r={12:8}, r={12:8}, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L2588] RET, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2588] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L3250] RET, EXPR aws_mul_size_checked(item_count, item_size, &list->current_size) VAL [\old(item_count)=9223372036854775808, \old(item_size)=2, aws_mul_size_checked(item_count, item_size, &list->current_size)=0, item_count=9223372036854775808, item_size=2, list={12:0}, list={12:0}, raw_array={-1:0}, raw_array={-1:0}, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L3250] int no_overflow = !aws_mul_size_checked(item_count, item_size, &list->current_size); [L3251] CALL assume_abort_if_not((no_overflow)) VAL [\old(cond)=1, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L3251] RET assume_abort_if_not((no_overflow)) VAL [\old(item_count)=9223372036854775808, \old(item_size)=2, item_count=9223372036854775808, item_size=2, list={12:0}, list={12:0}, no_overflow=1, raw_array={-1:0}, raw_array={-1:0}, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L3253] list->item_size = item_size [L3254] list->length = 0 [L3255] list->data = raw_array VAL [\old(item_count)=9223372036854775808, \old(item_size)=2, item_count=9223372036854775808, item_size=2, list={12:0}, list={12:0}, no_overflow=1, raw_array={-1:0}, raw_array={-1:0}, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L3256] CALL, EXPR aws_array_list_is_valid(list) VAL [\old(tl_last_error)=0, list={12:0}, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L3263] COND FALSE !(!list) [L3268] size_t required_size = 0; [L3272] EXPR list->length [L3272] EXPR list->item_size VAL [\old(tl_last_error)=0, list={12:0}, list={12:0}, list->item_size=2, list->length=0, required_size={7:0}, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L3272] CALL, EXPR aws_mul_size_checked(list->length, list->item_size, &required_size) VAL [\old(a)=0, \old(b)=2, \old(tl_last_error)=0, r={7:0}, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L2588] CALL, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2496] CALL __CPROVER_overflow_mult(a, b) VAL [\old(a)=0, \old(b)=2, \old(tl_last_error)=0, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); VAL [\old(a)=0, \old(b)=2, \old(tl_last_error)=0, \result=1, a=0, b=2, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L2496] RET __CPROVER_overflow_mult(a, b) VAL [\old(a)=0, \old(b)=2, \old(tl_last_error)=0, __CPROVER_overflow_mult(a, b)=1, a=0, b=2, r={7:0}, r={7:0}, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L2496] COND TRUE __CPROVER_overflow_mult(a, b) [L2497] CALL, EXPR aws_raise_error(AWS_ERROR_OVERFLOW_DETECTED) VAL [\old(tl_last_error)=0, s_can_fail_allocator_static={6:0}, tl_last_error=0] [L1996] CALL aws_raise_error_private(err) [L7366] tl_last_error = err VAL [\old(err)=4, \old(tl_last_error)=0, err=4, s_can_fail_allocator_static={6:0}, tl_last_error=4] [L1996] RET aws_raise_error_private(err) [L1998] return (-1); VAL [\old(err)=4, \old(tl_last_error)=0, \result=-1, err=4, s_can_fail_allocator_static={6:0}, tl_last_error=4] [L2497] RET, EXPR aws_raise_error(AWS_ERROR_OVERFLOW_DETECTED) VAL [\old(a)=0, \old(b)=2, \old(tl_last_error)=0, a=0, aws_raise_error(AWS_ERROR_OVERFLOW_DETECTED)=-1, b=2, r={7:0}, r={7:0}, s_can_fail_allocator_static={6:0}, tl_last_error=4] [L2497] return aws_raise_error(AWS_ERROR_OVERFLOW_DETECTED); [L2588] RET, EXPR aws_mul_u64_checked(a, b, (uint64_t *)r) [L2588] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L3272] RET, EXPR aws_mul_size_checked(list->length, list->item_size, &required_size) VAL [\old(tl_last_error)=0, aws_mul_size_checked(list->length, list->item_size, &required_size)=-1, list={12:0}, list={12:0}, list->item_size=2, list->length=0, required_size={7:0}, s_can_fail_allocator_static={6:0}, tl_last_error=4] [L3270-L3272] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L3275] EXPR list->current_size [L3275] EXPR \read(required_size) [L3274-L3275] _Bool current_size_is_valid = (list->current_size >= required_size); [L3279] EXPR list->current_size [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279] EXPR list->data [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) VAL [\old(tl_last_error)=0, current_size_is_valid=1, list={12:0}, list={12:0}, list->current_size=18446744073709551616, list->current_size == 0 && list->data == ((void *)0)=0, list->data={-1:0}, required_size={7:0}, required_size_is_valid=0, s_can_fail_allocator_static={6:0}, tl_last_error=4] [L3279-L3281] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L3281] EXPR list->current_size [L3281] EXPR (((list->current_size)) == 0) || ((list->data)) VAL [(((list->current_size)) == 0) || ((list->data))=1, (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))=0, \old(tl_last_error)=0, current_size_is_valid=1, list={12:0}, list={12:0}, list->current_size=18446744073709551616, list->current_size=18446744073709551616, list->current_size == 0 && list->data == ((void *)0)=0, list->data={-1:0}, required_size={7:0}, required_size_is_valid=0, s_can_fail_allocator_static={6:0}, tl_last_error=4] [L3279-L3281] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) VAL [(((list->current_size)) == 0) || ((list->data))=1, (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))=1, \old(tl_last_error)=0, current_size_is_valid=1, list={12:0}, list={12:0}, list->current_size=18446744073709551616, list->current_size=18446744073709551616, list->current_size == 0 && list->data == ((void *)0)=0, list->data={-1:0}, required_size={7:0}, required_size_is_valid=0, s_can_fail_allocator_static={6:0}, tl_last_error=4] [L3277-L3281] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L3284] EXPR list->item_size [L3283-L3284] _Bool item_size_is_valid = (list->item_size != 0); [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L3268] size_t required_size = 0; [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; VAL [\old(tl_last_error)=0, \result=0, current_size_is_valid=1, data_is_valid=1, item_size_is_valid=1, list={12:0}, list={12:0}, required_size_is_valid=0, s_can_fail_allocator_static={6:0}, tl_last_error=4] [L3256] RET, EXPR aws_array_list_is_valid(list) VAL [\old(item_count)=9223372036854775808, \old(item_size)=2, aws_array_list_is_valid(list)=0, item_count=9223372036854775808, item_size=2, list={12:0}, list={12:0}, no_overflow=1, raw_array={-1:0}, raw_array={-1:0}, s_can_fail_allocator_static={6:0}, tl_last_error=4] [L3256] CALL __VERIFIER_assert((aws_array_list_is_valid(list))) VAL [\old(cond)=0, s_can_fail_allocator_static={6:0}, tl_last_error=4] [L223] COND TRUE !cond VAL [\old(cond)=0, cond=0, s_can_fail_allocator_static={6:0}, tl_last_error=4] [L223] reach_error() VAL [\old(cond)=0, cond=0, s_can_fail_allocator_static={6:0}, tl_last_error=4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 105 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 119.3s, OverallIterations: 12, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 23.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 747 SdHoareTripleChecker+Valid, 4.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 717 mSDsluCounter, 9959 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 3676 IncrementalHoareTripleChecker+Unchecked, 8673 mSDsCounter, 492 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4902 IncrementalHoareTripleChecker+Invalid, 9070 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 492 mSolverCounterUnsat, 1286 mSDtfsCounter, 4902 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1347 GetRequests, 1110 SyntacticMatches, 16 SemanticMatches, 221 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 1713 ImplicationChecksByTransitivity, 78.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=206occurred in iteration=9, InterpolantAutomatonStates: 174, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 139 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 6.7s SatisfiabilityAnalysisTime, 84.2s InterpolantComputationTime, 1352 NumberOfCodeBlocks, 1352 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1251 ConstructedInterpolants, 107 QuantifiedInterpolants, 7664 SizeOfPredicates, 189 NumberOfNonLiveVariables, 6490 ConjunctsInSsa, 527 ConjunctsInUnsatCore, 12 InterpolantComputations, 7 PerfectInterpolantSequences, 1861/2052 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-16 20:05:23,806 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE