./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_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 971edb75bb0f677639f0c3e5b019bf9afe7575a35e63ddba584727b568db50c6 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 12:00:57,023 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 12:00:57,025 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 12:00:57,049 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 12:00:57,049 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 12:00:57,051 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 12:00:57,056 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 12:00:57,061 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 12:00:57,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 12:00:57,067 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 12:00:57,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 12:00:57,071 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 12:00:57,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 12:00:57,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 12:00:57,075 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 12:00:57,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 12:00:57,078 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 12:00:57,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 12:00:57,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 12:00:57,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 12:00:57,087 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 12:00:57,088 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 12:00:57,089 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 12:00:57,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 12:00:57,095 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 12:00:57,098 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 12:00:57,098 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 12:00:57,099 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 12:00:57,100 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 12:00:57,101 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 12:00:57,101 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 12:00:57,102 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 12:00:57,103 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 12:00:57,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 12:00:57,105 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 12:00:57,105 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 12:00:57,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 12:00:57,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 12:00:57,108 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 12:00:57,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 12:00:57,110 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 12:00:57,113 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 12:00:57,137 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 12:00:57,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 12:00:57,138 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 12:00:57,138 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 12:00:57,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 12:00:57,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 12:00:57,139 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 12:00:57,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 12:00:57,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 12:00:57,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 12:00:57,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 12:00:57,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 12:00:57,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 12:00:57,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 12:00:57,142 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 12:00:57,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 12:00:57,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 12:00:57,142 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 12:00:57,142 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 12:00:57,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 12:00:57,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 12:00:57,143 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 12:00:57,143 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 12:00:57,144 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 12:00:57,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 12:00:57,149 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 12:00:57,150 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 12:00:57,150 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 12:00:57,150 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 12:00:57,150 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 971edb75bb0f677639f0c3e5b019bf9afe7575a35e63ddba584727b568db50c6 [2021-11-05 12:00:57,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 12:00:57,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 12:00:57,477 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 12:00:57,478 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 12:00:57,479 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 12:00:57,481 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i [2021-11-05 12:00:57,553 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1284e60e7/1f8c971da3e440db8ff0b44deaf46f95/FLAG176a8c174 [2021-11-05 12:00:58,284 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 12:00:58,285 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i [2021-11-05 12:00:58,323 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1284e60e7/1f8c971da3e440db8ff0b44deaf46f95/FLAG176a8c174 [2021-11-05 12:00:58,396 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1284e60e7/1f8c971da3e440db8ff0b44deaf46f95 [2021-11-05 12:00:58,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 12:00:58,402 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 12:00:58,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 12:00:58,405 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 12:00:58,409 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 12:00:58,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 12:00:58" (1/1) ... [2021-11-05 12:00:58,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27029464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:00:58, skipping insertion in model container [2021-11-05 12:00:58,412 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 12:00:58" (1/1) ... [2021-11-05 12:00:58,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 12:00:58,515 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 12:00:58,837 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4498,4511] [2021-11-05 12:00:58,844 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4558,4571] [2021-11-05 12:00:58,869 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 12:00:58,880 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 12:00:59,553 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 12:00:59,627 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:00:59,627 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:00:59,628 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:00:59,629 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:00:59,629 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:00:59,639 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:00:59,641 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:00:59,645 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:00:59,646 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:00:59,649 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:00:59,650 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:00:59,651 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:00:59,653 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:00:59,906 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 12:00:59,908 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 12:00:59,909 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 12:00:59,914 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 12:00:59,916 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 12:00:59,916 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 12:00:59,917 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 12:00:59,918 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 12:00:59,920 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 12:00:59,920 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 12:01:00,068 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:00,075 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:00,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 12:01:00,200 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 12:01:00,212 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4498,4511] [2021-11-05 12:01:00,213 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4558,4571] [2021-11-05 12:01:00,214 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 12:01:00,215 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 12:01:00,263 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 12:01:00,285 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:00,293 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:00,293 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:00,294 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:00,294 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:00,315 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:00,316 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:00,317 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:00,317 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:00,324 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:00,325 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:00,325 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:00,326 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:00,365 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 12:01:00,366 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 12:01:00,368 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 12:01:00,368 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 12:01:00,369 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 12:01:00,370 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 12:01:00,370 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 12:01:00,371 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 12:01:00,371 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 12:01:00,371 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 12:01:00,412 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:00,419 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:00,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 12:01:00,697 INFO L208 MainTranslator]: Completed translation [2021-11-05 12:01:00,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:00 WrapperNode [2021-11-05 12:01:00,698 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 12:01:00,699 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 12:01:00,699 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 12:01:00,700 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 12:01:00,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:00" (1/1) ... [2021-11-05 12:01:00,807 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:00" (1/1) ... [2021-11-05 12:01:00,924 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 12:01:00,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 12:01:00,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 12:01:00,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 12:01:00,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:00" (1/1) ... [2021-11-05 12:01:00,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:00" (1/1) ... [2021-11-05 12:01:00,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:00" (1/1) ... [2021-11-05 12:01:00,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:00" (1/1) ... [2021-11-05 12:01:01,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:00" (1/1) ... [2021-11-05 12:01:01,062 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:00" (1/1) ... [2021-11-05 12:01:01,078 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:00" (1/1) ... [2021-11-05 12:01:01,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 12:01:01,122 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 12:01:01,122 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 12:01:01,122 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 12:01:01,123 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:00" (1/1) ... [2021-11-05 12:01:01,134 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 12:01:01,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:01:01,161 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) [2021-11-05 12:01:01,182 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 [2021-11-05 12:01:01,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 12:01:01,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 12:01:01,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 12:01:01,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 12:01:01,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 12:01:01,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 12:01:01,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 12:01:01,199 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-05 12:01:01,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 12:01:01,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 12:01:01,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 12:01:01,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 12:01:10,735 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 12:01:10,735 INFO L299 CfgBuilder]: Removed 306 assume(true) statements. [2021-11-05 12:01:10,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 12:01:10 BoogieIcfgContainer [2021-11-05 12:01:10,737 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 12:01:10,738 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 12:01:10,738 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 12:01:10,741 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 12:01:10,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 12:00:58" (1/3) ... [2021-11-05 12:01:10,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ea441d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 12:01:10, skipping insertion in model container [2021-11-05 12:01:10,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:00" (2/3) ... [2021-11-05 12:01:10,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ea441d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 12:01:10, skipping insertion in model container [2021-11-05 12:01:10,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 12:01:10" (3/3) ... [2021-11-05 12:01:10,744 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_pop_front_harness.i [2021-11-05 12:01:10,749 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 12:01:10,750 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2021-11-05 12:01:10,816 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 12:01:10,826 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 [2021-11-05 12:01:10,826 INFO L340 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2021-11-05 12:01:10,852 INFO L276 IsEmpty]: Start isEmpty. Operand has 381 states, 360 states have (on average 1.4166666666666667) internal successors, (510), 380 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:10,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-05 12:01:10,859 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:01:10,860 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:01:10,860 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:01:10,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:01:10,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1102187548, now seen corresponding path program 1 times [2021-11-05 12:01:10,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:01:10,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388186409] [2021-11-05 12:01:10,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:10,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:01:11,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:01:11,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:01:11,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:01:11,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388186409] [2021-11-05 12:01:11,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388186409] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:01:11,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:01:11,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 12:01:11,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664220880] [2021-11-05 12:01:11,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:01:11,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 12:01:11,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:01:11,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 12:01:11,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 12:01:11,495 INFO L87 Difference]: Start difference. First operand has 381 states, 360 states have (on average 1.4166666666666667) internal successors, (510), 380 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:11,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:01:11,541 INFO L93 Difference]: Finished difference Result 758 states and 1015 transitions. [2021-11-05 12:01:11,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 12:01:11,543 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-05 12:01:11,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:01:11,554 INFO L225 Difference]: With dead ends: 758 [2021-11-05 12:01:11,556 INFO L226 Difference]: Without dead ends: 376 [2021-11-05 12:01:11,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.05ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 12:01:11,567 INFO L933 BasicCegarLoop]: 476 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.27ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 12:01:11,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 3.27ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 12:01:11,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2021-11-05 12:01:11,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2021-11-05 12:01:11,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 356 states have (on average 1.3230337078651686) internal successors, (471), 375 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:11,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 471 transitions. [2021-11-05 12:01:11,614 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 471 transitions. Word has length 33 [2021-11-05 12:01:11,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:01:11,615 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 471 transitions. [2021-11-05 12:01:11,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:11,615 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 471 transitions. [2021-11-05 12:01:11,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-05 12:01:11,616 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:01:11,616 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:01:11,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 12:01:11,617 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:01:11,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:01:11,618 INFO L85 PathProgramCache]: Analyzing trace with hash -977674992, now seen corresponding path program 1 times [2021-11-05 12:01:11,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:01:11,618 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142841976] [2021-11-05 12:01:11,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:11,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:01:11,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:01:11,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:01:11,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:01:11,916 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142841976] [2021-11-05 12:01:11,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142841976] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:01:11,917 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:01:11,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 12:01:11,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90710667] [2021-11-05 12:01:11,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:01:11,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 12:01:11,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:01:11,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 12:01:11,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 12:01:11,919 INFO L87 Difference]: Start difference. First operand 376 states and 471 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:11,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:01:11,964 INFO L93 Difference]: Finished difference Result 739 states and 927 transitions. [2021-11-05 12:01:11,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 12:01:11,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-05 12:01:11,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:01:11,967 INFO L225 Difference]: With dead ends: 739 [2021-11-05 12:01:11,967 INFO L226 Difference]: Without dead ends: 377 [2021-11-05 12:01:11,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.46ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 12:01:11,968 INFO L933 BasicCegarLoop]: 470 mSDtfsCounter, 0 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.31ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.22ms IncrementalHoareTripleChecker+Time [2021-11-05 12:01:11,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 936 Invalid, 5 Unknown, 0 Unchecked, 5.31ms Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 19.22ms Time] [2021-11-05 12:01:11,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-11-05 12:01:11,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2021-11-05 12:01:12,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 357 states have (on average 1.3221288515406162) internal successors, (472), 376 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:12,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 472 transitions. [2021-11-05 12:01:12,005 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 472 transitions. Word has length 33 [2021-11-05 12:01:12,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:01:12,006 INFO L470 AbstractCegarLoop]: Abstraction has 377 states and 472 transitions. [2021-11-05 12:01:12,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:12,006 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 472 transitions. [2021-11-05 12:01:12,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-05 12:01:12,007 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:01:12,007 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:01:12,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 12:01:12,008 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:01:12,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:01:12,009 INFO L85 PathProgramCache]: Analyzing trace with hash -468201902, now seen corresponding path program 1 times [2021-11-05 12:01:12,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:01:12,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133264047] [2021-11-05 12:01:12,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:12,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:01:12,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:01:12,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:01:12,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:01:12,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133264047] [2021-11-05 12:01:12,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133264047] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:01:12,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:01:12,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 12:01:12,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72742641] [2021-11-05 12:01:12,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:01:12,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 12:01:12,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:01:12,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 12:01:12,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 12:01:12,371 INFO L87 Difference]: Start difference. First operand 377 states and 472 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:13,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:01:13,151 INFO L93 Difference]: Finished difference Result 722 states and 904 transitions. [2021-11-05 12:01:13,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 12:01:13,152 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-05 12:01:13,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:01:13,155 INFO L225 Difference]: With dead ends: 722 [2021-11-05 12:01:13,155 INFO L226 Difference]: Without dead ends: 377 [2021-11-05 12:01:13,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 44.19ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 12:01:13,157 INFO L933 BasicCegarLoop]: 439 mSDtfsCounter, 456 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 627.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.22ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 730.52ms IncrementalHoareTripleChecker+Time [2021-11-05 12:01:13,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [456 Valid, 724 Invalid, 145 Unknown, 0 Unchecked, 8.22ms Time], IncrementalHoareTripleChecker [4 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 730.52ms Time] [2021-11-05 12:01:13,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-11-05 12:01:13,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2021-11-05 12:01:13,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 357 states have (on average 1.3137254901960784) internal successors, (469), 376 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:13,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 469 transitions. [2021-11-05 12:01:13,204 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 469 transitions. Word has length 33 [2021-11-05 12:01:13,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:01:13,205 INFO L470 AbstractCegarLoop]: Abstraction has 377 states and 469 transitions. [2021-11-05 12:01:13,205 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:13,205 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 469 transitions. [2021-11-05 12:01:13,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-05 12:01:13,209 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:01:13,209 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:01:13,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 12:01:13,210 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:01:13,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:01:13,213 INFO L85 PathProgramCache]: Analyzing trace with hash 721547164, now seen corresponding path program 1 times [2021-11-05 12:01:13,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:01:13,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668445124] [2021-11-05 12:01:13,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:13,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:01:13,323 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 12:01:13,323 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [83191126] [2021-11-05 12:01:13,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:13,324 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:01:13,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:01:13,331 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) [2021-11-05 12:01:13,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-05 12:01:14,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:01:14,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 2522 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-05 12:01:14,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:01:14,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:01:14,517 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 12:01:14,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:01:14,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668445124] [2021-11-05 12:01:14,517 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 12:01:14,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83191126] [2021-11-05 12:01:14,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83191126] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:01:14,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:01:14,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 12:01:14,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179227923] [2021-11-05 12:01:14,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:01:14,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 12:01:14,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:01:14,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 12:01:14,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 12:01:14,520 INFO L87 Difference]: Start difference. First operand 377 states and 469 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:15,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:01:15,626 INFO L93 Difference]: Finished difference Result 803 states and 1012 transitions. [2021-11-05 12:01:15,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 12:01:15,631 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-05 12:01:15,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:01:15,633 INFO L225 Difference]: With dead ends: 803 [2021-11-05 12:01:15,633 INFO L226 Difference]: Without dead ends: 457 [2021-11-05 12:01:15,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 64.26ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:01:15,635 INFO L933 BasicCegarLoop]: 522 mSDtfsCounter, 118 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 924.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.43ms SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1026.26ms IncrementalHoareTripleChecker+Time [2021-11-05 12:01:15,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 1234 Invalid, 299 Unknown, 0 Unchecked, 8.43ms Time], IncrementalHoareTripleChecker [61 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 1026.26ms Time] [2021-11-05 12:01:15,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2021-11-05 12:01:15,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 409. [2021-11-05 12:01:15,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 389 states have (on average 1.287917737789203) internal successors, (501), 408 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:15,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 501 transitions. [2021-11-05 12:01:15,664 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 501 transitions. Word has length 49 [2021-11-05 12:01:15,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:01:15,664 INFO L470 AbstractCegarLoop]: Abstraction has 409 states and 501 transitions. [2021-11-05 12:01:15,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:15,665 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 501 transitions. [2021-11-05 12:01:15,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-05 12:01:15,669 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:01:15,670 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:01:15,704 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-05 12:01:15,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:01:15,888 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:01:15,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:01:15,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1884476390, now seen corresponding path program 1 times [2021-11-05 12:01:15,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:01:15,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682715275] [2021-11-05 12:01:15,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:15,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:01:16,004 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 12:01:16,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [749070129] [2021-11-05 12:01:16,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:16,005 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:01:16,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:01:16,006 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) [2021-11-05 12:01:16,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-05 12:01:16,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:01:16,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 2527 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-05 12:01:16,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:01:17,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:01:17,334 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 12:01:17,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:01:17,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682715275] [2021-11-05 12:01:17,335 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 12:01:17,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749070129] [2021-11-05 12:01:17,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [749070129] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:01:17,335 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:01:17,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 12:01:17,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256116220] [2021-11-05 12:01:17,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:01:17,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 12:01:17,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:01:17,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 12:01:17,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-05 12:01:17,337 INFO L87 Difference]: Start difference. First operand 409 states and 501 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:18,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:01:18,428 INFO L93 Difference]: Finished difference Result 809 states and 982 transitions. [2021-11-05 12:01:18,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-05 12:01:18,430 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-05 12:01:18,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:01:18,432 INFO L225 Difference]: With dead ends: 809 [2021-11-05 12:01:18,432 INFO L226 Difference]: Without dead ends: 479 [2021-11-05 12:01:18,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 277.91ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-11-05 12:01:18,434 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 1980 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 739.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1980 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.22ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 838.74ms IncrementalHoareTripleChecker+Time [2021-11-05 12:01:18,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1980 Valid, 891 Invalid, 245 Unknown, 0 Unchecked, 14.22ms Time], IncrementalHoareTripleChecker [37 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 838.74ms Time] [2021-11-05 12:01:18,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2021-11-05 12:01:18,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 409. [2021-11-05 12:01:18,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 389 states have (on average 1.275064267352185) internal successors, (496), 408 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:18,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 496 transitions. [2021-11-05 12:01:18,449 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 496 transitions. Word has length 49 [2021-11-05 12:01:18,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:01:18,449 INFO L470 AbstractCegarLoop]: Abstraction has 409 states and 496 transitions. [2021-11-05 12:01:18,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:01:18,450 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 496 transitions. [2021-11-05 12:01:18,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-05 12:01:18,451 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:01:18,451 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:01:18,481 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-05 12:01:18,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:01:18,668 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:01:18,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:01:18,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1740025118, now seen corresponding path program 1 times [2021-11-05 12:01:18,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:01:18,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799948074] [2021-11-05 12:01:18,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:18,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:01:18,755 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 12:01:18,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [672944600] [2021-11-05 12:01:18,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:18,756 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:01:18,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:01:18,757 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) [2021-11-05 12:01:18,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-05 12:04:38,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:04:38,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 2717 conjuncts, 251 conjunts are in the unsatisfiable core [2021-11-05 12:04:38,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:04:38,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-05 12:04:39,245 INFO L354 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2021-11-05 12:04:39,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 33 [2021-11-05 12:04:39,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-05 12:04:40,106 INFO L354 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2021-11-05 12:04:40,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 33 [2021-11-05 12:04:40,765 INFO L354 Elim1Store]: treesize reduction 162, result has 21.0 percent of original size [2021-11-05 12:04:40,766 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 15 case distinctions, treesize of input 43 treesize of output 71 [2021-11-05 12:04:41,498 INFO L354 Elim1Store]: treesize reduction 36, result has 26.5 percent of original size [2021-11-05 12:04:41,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 33 treesize of output 37 [2021-11-05 12:04:41,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:04:41,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 28 [2021-11-05 12:04:44,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:04:44,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799948074] [2021-11-05 12:04:44,664 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 12:04:44,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672944600] [2021-11-05 12:04:44,664 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|ULTIMATE.start_aws_array_list_is_valid_~#required_size~0.base|] [2021-11-05 12:04:44,664 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:04:44,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-05 12:04:44,665 ERROR L172 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2021-11-05 12:04:44,665 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-05 12:04:44,671 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 20 remaining) [2021-11-05 12:04:44,672 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (18 of 20 remaining) [2021-11-05 12:04:44,673 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (17 of 20 remaining) [2021-11-05 12:04:44,673 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (16 of 20 remaining) [2021-11-05 12:04:44,673 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (15 of 20 remaining) [2021-11-05 12:04:44,673 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (14 of 20 remaining) [2021-11-05 12:04:44,674 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (13 of 20 remaining) [2021-11-05 12:04:44,674 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (12 of 20 remaining) [2021-11-05 12:04:44,674 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (11 of 20 remaining) [2021-11-05 12:04:44,674 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (10 of 20 remaining) [2021-11-05 12:04:44,674 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (9 of 20 remaining) [2021-11-05 12:04:44,675 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (8 of 20 remaining) [2021-11-05 12:04:44,675 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (7 of 20 remaining) [2021-11-05 12:04:44,675 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION (6 of 20 remaining) [2021-11-05 12:04:44,675 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (5 of 20 remaining) [2021-11-05 12:04:44,675 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION (4 of 20 remaining) [2021-11-05 12:04:44,676 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION (3 of 20 remaining) [2021-11-05 12:04:44,676 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION (2 of 20 remaining) [2021-11-05 12:04:44,676 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION (1 of 20 remaining) [2021-11-05 12:04:44,676 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION (0 of 20 remaining) [2021-11-05 12:04:44,895 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forcibly destroying the process [2021-11-05 12:04:44,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-05 12:04:44,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:04:44,941 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-05 12:04:44,943 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-05 12:04:45,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.11 12:04:45 BoogieIcfgContainer [2021-11-05 12:04:45,003 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-05 12:04:45,005 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-05 12:04:45,005 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-05 12:04:45,005 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-05 12:04:45,006 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 12:01:10" (3/4) ... [2021-11-05 12:04:45,009 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-05 12:04:45,009 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-05 12:04:45,009 INFO L158 Benchmark]: Toolchain (without parser) took 226607.35ms. Allocated memory was 52.4MB in the beginning and 482.3MB in the end (delta: 429.9MB). Free memory was 33.6MB in the beginning and 434.2MB in the end (delta: -400.6MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. [2021-11-05 12:04:45,010 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 52.4MB. Free memory was 34.6MB in the beginning and 34.5MB in the end (delta: 37.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-05 12:04:45,010 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2293.63ms. Allocated memory was 52.4MB in the beginning and 79.7MB in the end (delta: 27.3MB). Free memory was 33.3MB in the beginning and 35.4MB in the end (delta: -2.1MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. [2021-11-05 12:04:45,011 INFO L158 Benchmark]: Boogie Procedure Inliner took 225.05ms. Allocated memory is still 79.7MB. Free memory was 35.4MB in the beginning and 31.7MB in the end (delta: 3.7MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2021-11-05 12:04:45,011 INFO L158 Benchmark]: Boogie Preprocessor took 195.42ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 31.7MB in the beginning and 48.4MB in the end (delta: -16.7MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2021-11-05 12:04:45,011 INFO L158 Benchmark]: RCFGBuilder took 9615.43ms. Allocated memory was 98.6MB in the beginning and 400.6MB in the end (delta: 302.0MB). Free memory was 48.4MB in the beginning and 124.9MB in the end (delta: -76.4MB). Peak memory consumption was 236.7MB. Max. memory is 16.1GB. [2021-11-05 12:04:45,012 INFO L158 Benchmark]: TraceAbstraction took 214265.24ms. Allocated memory was 400.6MB in the beginning and 482.3MB in the end (delta: 81.8MB). Free memory was 124.9MB in the beginning and 434.2MB in the end (delta: -309.3MB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. [2021-11-05 12:04:45,012 INFO L158 Benchmark]: Witness Printer took 4.37ms. Allocated memory is still 482.3MB. Free memory is still 434.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-05 12:04:45,015 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 52.4MB. Free memory was 34.6MB in the beginning and 34.5MB in the end (delta: 37.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2293.63ms. Allocated memory was 52.4MB in the beginning and 79.7MB in the end (delta: 27.3MB). Free memory was 33.3MB in the beginning and 35.4MB in the end (delta: -2.1MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 225.05ms. Allocated memory is still 79.7MB. Free memory was 35.4MB in the beginning and 31.7MB in the end (delta: 3.7MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 195.42ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 31.7MB in the beginning and 48.4MB in the end (delta: -16.7MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * RCFGBuilder took 9615.43ms. Allocated memory was 98.6MB in the beginning and 400.6MB in the end (delta: 302.0MB). Free memory was 48.4MB in the beginning and 124.9MB in the end (delta: -76.4MB). Peak memory consumption was 236.7MB. Max. memory is 16.1GB. * TraceAbstraction took 214265.24ms. Allocated memory was 400.6MB in the beginning and 482.3MB in the end (delta: 81.8MB). Free memory was 124.9MB in the beginning and 434.2MB in the end (delta: -309.3MB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. * Witness Printer took 4.37ms. Allocated memory is still 482.3MB. Free memory is still 434.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint, overapproximation of large string literal at line 7782. Possible 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; [L7781-L7929] static struct aws_error_info errors[] = { [(AWS_ERROR_SUCCESS)-0x0000] = { .literal_name = "AWS_ERROR_SUCCESS", .error_code = (AWS_ERROR_SUCCESS), .error_str = ("Success."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SUCCESS" ", " "Success.", } , [(AWS_ERROR_OOM)-0x0000] = { .literal_name = "AWS_ERROR_OOM", .error_code = (AWS_ERROR_OOM), .error_str = ("Out of memory."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_OOM" ", " "Out of memory.", } , [(AWS_ERROR_UNKNOWN)-0x0000] = { .literal_name = "AWS_ERROR_UNKNOWN", .error_code = (AWS_ERROR_UNKNOWN), .error_str = ("Unknown error."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNKNOWN" ", " "Unknown error.", } , [(AWS_ERROR_SHORT_BUFFER)-0x0000] = { .literal_name = "AWS_ERROR_SHORT_BUFFER", .error_code = (AWS_ERROR_SHORT_BUFFER), .error_str = ("Buffer is not large enough to hold result."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SHORT_BUFFER" ", " "Buffer is not large enough to hold result.", } , [(AWS_ERROR_OVERFLOW_DETECTED)-0x0000] = { .literal_name = "AWS_ERROR_OVERFLOW_DETECTED", .error_code = (AWS_ERROR_OVERFLOW_DETECTED), .error_str = ("Fixed size value overflow was detected."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_OVERFLOW_DETECTED" ", " "Fixed size value overflow was detected.", } , [(AWS_ERROR_UNSUPPORTED_OPERATION)-0x0000] = { .literal_name = "AWS_ERROR_UNSUPPORTED_OPERATION", .error_code = (AWS_ERROR_UNSUPPORTED_OPERATION), .error_str = ("Unsupported operation."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNSUPPORTED_OPERATION" ", " "Unsupported operation.", } , [(AWS_ERROR_INVALID_BUFFER_SIZE)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_BUFFER_SIZE", .error_code = (AWS_ERROR_INVALID_BUFFER_SIZE), .error_str = ("Invalid buffer size."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_BUFFER_SIZE" ", " "Invalid buffer size.", } , [(AWS_ERROR_INVALID_HEX_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_HEX_STR", .error_code = (AWS_ERROR_INVALID_HEX_STR), .error_str = ("Invalid hex string."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_HEX_STR" ", " "Invalid hex string.", } , [(AWS_ERROR_INVALID_BASE64_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_BASE64_STR", .error_code = (AWS_ERROR_INVALID_BASE64_STR), .error_str = ("Invalid base64 string."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_BASE64_STR" ", " "Invalid base64 string.", } , [(AWS_ERROR_INVALID_INDEX)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_INDEX", .error_code = (AWS_ERROR_INVALID_INDEX), .error_str = ("Invalid index for list access."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_INDEX" ", " "Invalid index for list access.", } , [(AWS_ERROR_THREAD_INVALID_SETTINGS)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_INVALID_SETTINGS", .error_code = (AWS_ERROR_THREAD_INVALID_SETTINGS), .error_str = ("Invalid thread settings."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_INVALID_SETTINGS" ", " "Invalid thread settings.", } , [(AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE", .error_code = (AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE), .error_str = ("Insufficent resources for thread."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE" ", " "Insufficent resources for thread.", } , [(AWS_ERROR_THREAD_NO_PERMISSIONS)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NO_PERMISSIONS", .error_code = (AWS_ERROR_THREAD_NO_PERMISSIONS), .error_str = ("Insufficient permissions for thread operation."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NO_PERMISSIONS" ", " "Insufficient permissions for thread operation.", } , [(AWS_ERROR_THREAD_NOT_JOINABLE)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NOT_JOINABLE", .error_code = (AWS_ERROR_THREAD_NOT_JOINABLE), .error_str = ("Thread not joinable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NOT_JOINABLE" ", " "Thread not joinable.", } , [(AWS_ERROR_THREAD_NO_SUCH_THREAD_ID)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NO_SUCH_THREAD_ID", .error_code = (AWS_ERROR_THREAD_NO_SUCH_THREAD_ID), .error_str = ("No such thread ID."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NO_SUCH_THREAD_ID" ", " "No such thread ID.", } , [(AWS_ERROR_THREAD_DEADLOCK_DETECTED)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_DEADLOCK_DETECTED", .error_code = (AWS_ERROR_THREAD_DEADLOCK_DETECTED), .error_str = ("Deadlock detected in thread."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_DEADLOCK_DETECTED" ", " "Deadlock detected in thread.", } , [(AWS_ERROR_MUTEX_NOT_INIT)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_NOT_INIT", .error_code = (AWS_ERROR_MUTEX_NOT_INIT), .error_str = ("Mutex not initialized."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_NOT_INIT" ", " "Mutex not initialized.", } , [(AWS_ERROR_MUTEX_TIMEOUT)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_TIMEOUT", .error_code = (AWS_ERROR_MUTEX_TIMEOUT), .error_str = ("Mutex operation timed out."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_TIMEOUT" ", " "Mutex operation timed out.", } , [(AWS_ERROR_MUTEX_CALLER_NOT_OWNER)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_CALLER_NOT_OWNER", .error_code = (AWS_ERROR_MUTEX_CALLER_NOT_OWNER), .error_str = ("The caller of a mutex operation was not the owner."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_CALLER_NOT_OWNER" ", " "The caller of a mutex operation was not the owner.", } , [(AWS_ERROR_MUTEX_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_FAILED", .error_code = (AWS_ERROR_MUTEX_FAILED), .error_str = ("Mutex operation failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_FAILED" ", " "Mutex operation failed.", } , [(AWS_ERROR_COND_VARIABLE_INIT_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_INIT_FAILED", .error_code = (AWS_ERROR_COND_VARIABLE_INIT_FAILED), .error_str = ("Condition variable initialization failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_INIT_FAILED" ", " "Condition variable initialization failed.", } , [(AWS_ERROR_COND_VARIABLE_TIMED_OUT)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_TIMED_OUT", .error_code = (AWS_ERROR_COND_VARIABLE_TIMED_OUT), .error_str = ("Condition variable wait timed out."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_TIMED_OUT" ", " "Condition variable wait timed out.", } , [(AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN", .error_code = (AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN), .error_str = ("Condition variable unknown error."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN" ", " "Condition variable unknown error.", } , [(AWS_ERROR_CLOCK_FAILURE)-0x0000] = { .literal_name = "AWS_ERROR_CLOCK_FAILURE", .error_code = (AWS_ERROR_CLOCK_FAILURE), .error_str = ("Clock operation failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_CLOCK_FAILURE" ", " "Clock operation failed.", } , [(AWS_ERROR_LIST_EMPTY)-0x0000] = { .literal_name = "AWS_ERROR_LIST_EMPTY", .error_code = (AWS_ERROR_LIST_EMPTY), .error_str = ("Empty list."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_EMPTY" ", " "Empty list.", } , [(AWS_ERROR_DEST_COPY_TOO_SMALL)-0x0000] = { .literal_name = "AWS_ERROR_DEST_COPY_TOO_SMALL", .error_code = (AWS_ERROR_DEST_COPY_TOO_SMALL), .error_str = ("Destination of copy is too small."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_DEST_COPY_TOO_SMALL" ", " "Destination of copy is too small.", } , [(AWS_ERROR_LIST_EXCEEDS_MAX_SIZE)-0x0000] = { .literal_name = "AWS_ERROR_LIST_EXCEEDS_MAX_SIZE", .error_code = (AWS_ERROR_LIST_EXCEEDS_MAX_SIZE), .error_str = ("A requested operation on a list would exceed it's max size."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_EXCEEDS_MAX_SIZE" ", " "A requested operation on a list would exceed it's max size.", } , [(AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK)-0x0000] = { .literal_name = "AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK", .error_code = (AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK), .error_str = ("Attempt to shrink a list in static mode."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK" ", " "Attempt to shrink a list in static mode.", } , [(AWS_ERROR_PRIORITY_QUEUE_FULL)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_FULL", .error_code = (AWS_ERROR_PRIORITY_QUEUE_FULL), .error_str = ("Attempt to add items to a full preallocated queue in static mode."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_FULL" ", " "Attempt to add items to a full preallocated queue in static mode.", } , [(AWS_ERROR_PRIORITY_QUEUE_EMPTY)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_EMPTY", .error_code = (AWS_ERROR_PRIORITY_QUEUE_EMPTY), .error_str = ("Attempt to pop an item from an empty queue."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_EMPTY" ", " "Attempt to pop an item from an empty queue.", } , [(AWS_ERROR_PRIORITY_QUEUE_BAD_NODE)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_BAD_NODE", .error_code = (AWS_ERROR_PRIORITY_QUEUE_BAD_NODE), .error_str = ("Bad node handle passed to remove."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_BAD_NODE" ", " "Bad node handle passed to remove.", } , [(AWS_ERROR_HASHTBL_ITEM_NOT_FOUND)-0x0000] = { .literal_name = "AWS_ERROR_HASHTBL_ITEM_NOT_FOUND", .error_code = (AWS_ERROR_HASHTBL_ITEM_NOT_FOUND), .error_str = ("Item not found in hash table."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_HASHTBL_ITEM_NOT_FOUND" ", " "Item not found in hash table.", } , [(AWS_ERROR_INVALID_DATE_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_DATE_STR", .error_code = (AWS_ERROR_INVALID_DATE_STR), .error_str = ("Date string is invalid and cannot be parsed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_DATE_STR" ", " "Date string is invalid and cannot be parsed.", } , [(AWS_ERROR_INVALID_ARGUMENT)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_ARGUMENT", .error_code = (AWS_ERROR_INVALID_ARGUMENT), .error_str = ("An invalid argument was passed to a function."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_ARGUMENT" ", " "An invalid argument was passed to a function.", } , [(AWS_ERROR_RANDOM_GEN_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_RANDOM_GEN_FAILED", .error_code = (AWS_ERROR_RANDOM_GEN_FAILED), .error_str = ("A call to the random number generator failed. Retry later."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_RANDOM_GEN_FAILED" ", " "A call to the random number generator failed. Retry later.", } , [(AWS_ERROR_MALFORMED_INPUT_STRING)-0x0000] = { .literal_name = "AWS_ERROR_MALFORMED_INPUT_STRING", .error_code = (AWS_ERROR_MALFORMED_INPUT_STRING), .error_str = ("An input string was passed to a parser and the string was incorrectly formatted."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MALFORMED_INPUT_STRING" ", " "An input string was passed to a parser and the string was incorrectly formatted.", } , [(AWS_ERROR_UNIMPLEMENTED)-0x0000] = { .literal_name = "AWS_ERROR_UNIMPLEMENTED", .error_code = (AWS_ERROR_UNIMPLEMENTED), .error_str = ("A function was called, but is not implemented."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNIMPLEMENTED" ", " "A function was called, but is not implemented.", } , [(AWS_ERROR_INVALID_STATE)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_STATE", .error_code = (AWS_ERROR_INVALID_STATE), .error_str = ("An invalid state was encountered."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_STATE" ", " "An invalid state was encountered.", } , [(AWS_ERROR_ENVIRONMENT_GET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_GET", .error_code = (AWS_ERROR_ENVIRONMENT_GET), .error_str = ("System call failure when getting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_GET" ", " "System call failure when getting an environment variable.", } , [(AWS_ERROR_ENVIRONMENT_SET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_SET", .error_code = (AWS_ERROR_ENVIRONMENT_SET), .error_str = ("System call failure when setting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_SET" ", " "System call failure when setting an environment variable.", } , [(AWS_ERROR_ENVIRONMENT_UNSET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_UNSET", .error_code = (AWS_ERROR_ENVIRONMENT_UNSET), .error_str = ("System call failure when unsetting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_UNSET" ", " "System call failure when unsetting an environment variable.", } , [(AWS_ERROR_SYS_CALL_FAILURE)-0x0000] = { .literal_name = "AWS_ERROR_SYS_CALL_FAILURE", .error_code = (AWS_ERROR_SYS_CALL_FAILURE), .error_str = ("System call failure"), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SYS_CALL_FAILURE" ", " "System call failure", } , [(AWS_ERROR_FILE_INVALID_PATH)-0x0000] = { .literal_name = "AWS_ERROR_FILE_INVALID_PATH", .error_code = (AWS_ERROR_FILE_INVALID_PATH), .error_str = ("Invalid file path."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_FILE_INVALID_PATH" ", " "Invalid file path.", } , [(AWS_ERROR_MAX_FDS_EXCEEDED)-0x0000] = { .literal_name = "AWS_ERROR_MAX_FDS_EXCEEDED", .error_code = (AWS_ERROR_MAX_FDS_EXCEEDED), .error_str = ("The maximum number of fds has been exceeded."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MAX_FDS_EXCEEDED" ", " "The maximum number of fds has been exceeded.", } , [(AWS_ERROR_NO_PERMISSION)-0x0000] = { .literal_name = "AWS_ERROR_NO_PERMISSION", .error_code = (AWS_ERROR_NO_PERMISSION), .error_str = ("User does not have permission to perform the requested action."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_NO_PERMISSION" ", " "User does not have permission to perform the requested action.", } , [(AWS_ERROR_STREAM_UNSEEKABLE)-0x0000] = { .literal_name = "AWS_ERROR_STREAM_UNSEEKABLE", .error_code = (AWS_ERROR_STREAM_UNSEEKABLE), .error_str = ("Stream does not support seek operations"), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_STREAM_UNSEEKABLE" ", " "Stream does not support seek operations", } , }; [L7932-L7935] static struct aws_error_info_list s_list = { .error_list = errors, .count = (sizeof(errors) / sizeof((errors)[0])), }; [L7937-L7946] static struct aws_log_subject_info s_common_log_subject_infos[] = { { .subject_id = (AWS_LS_COMMON_GENERAL), .subject_name = ("aws-c-common"), .subject_description = ("Subject for aws-c-common logging that doesn't belong to any particular category") } , { .subject_id = (AWS_LS_COMMON_TASK_SCHEDULER), .subject_name = ("task-scheduler"), .subject_description = ("Subject for task scheduler or task specific logging.") } , }; [L7948-L7951] static struct aws_log_subject_info_list s_common_log_subject_list = { .subject_list = s_common_log_subject_infos, .count = (sizeof(s_common_log_subject_infos) / sizeof((s_common_log_subject_infos)[0])), }; [L7953-L7957] static _Bool s_common_library_initialized = 0 ; [L7971] struct aws_array_list list = {0, __VERIFIER_nondet_ulong(), __VERIFIER_nondet_ulong(), __VERIFIER_nondet_ulong(), 0}; [L7005] EXPR list->item_size [L7004-L7005] _Bool item_size_is_bounded = list->item_size <= max_item_size; [L7008] EXPR list->length [L7007-L7008] _Bool length_is_bounded = list->length <= max_initial_item_allocation; [L7009] return item_size_is_bounded && length_is_bounded; [L211] COND FALSE !(!cond) [L7013] EXPR list->current_size [L7013] list->current_size == 0 && list->length == 0 [L7013] EXPR list->length [L7013] list->current_size == 0 && list->length == 0 [L7013] COND TRUE list->current_size == 0 && list->length == 0 [L7014] list->data [L211] COND FALSE !(!cond) [L2786] return &s_can_fail_allocator_static; [L7017] list->alloc = can_fail_allocator() [L3263] COND FALSE !(!list) [L3268] size_t required_size = 0; [L3272] EXPR list->length [L3272] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2496] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2498] *r = a * b [L2499] return (0); [L2588] return aws_mul_u64_checked(a, b, (uint64_t *)r); [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) [L3279-L3281] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [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; [L211] COND FALSE !(!cond) [L7979] struct aws_array_list old = list; [L7980] struct store_byte_from_buffer old_byte; [L7981] list.data [L7981] list.current_size [L7183] COND FALSE !(size > 0 && array && storage) [L3263] COND FALSE !(!list) [L3268] size_t required_size = 0; [L3272] EXPR list->length [L3272] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2496] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2498] *r = a * b [L2499] return (0); [L2588] return aws_mul_u64_checked(a, b, (uint64_t *)r); [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) [L3279-L3281] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [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; [L211] COND FALSE !(!cond) [L3493] EXPR list->length [L3493] !list->length || list->data [L211] COND FALSE !(!cond) [L3263] COND FALSE !(!list) [L3268] size_t required_size = 0; [L3272] EXPR list->length [L3272] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2496] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2498] *r = a * b [L2499] return (0); [L2588] return aws_mul_u64_checked(a, b, (uint64_t *)r); [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) [L3279-L3281] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [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; [L211] COND FALSE !(!cond) [L3495] EXPR list->length [L3495] size_t len = list->length; [L3263] COND FALSE !(!list) [L3268] size_t required_size = 0; [L3272] EXPR list->length [L3272] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2496] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2498] *r = a * b [L2499] return (0); [L2588] return aws_mul_u64_checked(a, b, (uint64_t *)r); [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) [L3279-L3281] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [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; [L223] COND TRUE !cond [L223] reach_error() - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 381 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 214128.54ms, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 22.76ms, AutomataDifference: 3151.86ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 19.35ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2554 SdHoareTripleChecker+Valid, 2614.75ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2554 mSDsluCounter, 4261 SdHoareTripleChecker+Invalid, 2310.09ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1967 mSDsCounter, 102 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 592 IncrementalHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 102 mSolverCounterUnsat, 2294 mSDtfsCounter, 592 mSolverCounterSat, 39.45ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 415.86ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=409occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 157.37ms AutomataMinimizationTime, 5 MinimizatonAttempts, 118 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 458.01ms SsaConstructionTime, 201350.90ms SatisfiabilityAnalysisTime, 7500.30ms InterpolantComputationTime, 262 NumberOfCodeBlocks, 262 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 311 SizeOfPredicates, 8 NumberOfNonLiveVariables, 7766 ConjunctsInSsa, 263 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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 could not prove your program: unable to determine feasibility of some traces [2021-11-05 12:04:45,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.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 971edb75bb0f677639f0c3e5b019bf9afe7575a35e63ddba584727b568db50c6 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 12:04:47,196 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 12:04:47,198 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 12:04:47,239 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 12:04:47,240 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 12:04:47,245 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 12:04:47,246 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 12:04:47,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 12:04:47,254 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 12:04:47,261 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 12:04:47,262 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 12:04:47,264 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 12:04:47,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 12:04:47,267 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 12:04:47,268 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 12:04:47,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 12:04:47,274 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 12:04:47,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 12:04:47,278 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 12:04:47,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 12:04:47,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 12:04:47,285 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 12:04:47,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 12:04:47,286 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 12:04:47,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 12:04:47,289 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 12:04:47,289 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 12:04:47,290 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 12:04:47,301 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 12:04:47,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 12:04:47,302 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 12:04:47,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 12:04:47,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 12:04:47,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 12:04:47,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 12:04:47,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 12:04:47,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 12:04:47,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 12:04:47,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 12:04:47,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 12:04:47,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 12:04:47,312 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-05 12:04:47,351 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 12:04:47,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 12:04:47,352 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 12:04:47,352 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 12:04:47,354 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 12:04:47,354 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 12:04:47,354 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 12:04:47,354 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 12:04:47,355 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 12:04:47,355 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 12:04:47,355 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 12:04:47,356 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 12:04:47,356 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-05 12:04:47,356 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-05 12:04:47,356 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 12:04:47,356 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 12:04:47,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 12:04:47,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 12:04:47,357 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 12:04:47,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 12:04:47,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 12:04:47,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 12:04:47,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 12:04:47,358 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 12:04:47,358 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-05 12:04:47,358 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-05 12:04:47,358 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 12:04:47,358 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 12:04:47,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 12:04:47,359 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 12:04:47,359 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-05 12:04:47,359 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 971edb75bb0f677639f0c3e5b019bf9afe7575a35e63ddba584727b568db50c6 [2021-11-05 12:04:47,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 12:04:47,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 12:04:47,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 12:04:47,725 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 12:04:47,725 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 12:04:47,728 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i [2021-11-05 12:04:47,798 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1452f3e8/ca1ad3b221ec4cc6bbb8cd61d05421b9/FLAG1069f41ed [2021-11-05 12:04:48,598 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 12:04:48,598 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i [2021-11-05 12:04:48,636 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1452f3e8/ca1ad3b221ec4cc6bbb8cd61d05421b9/FLAG1069f41ed [2021-11-05 12:04:48,809 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1452f3e8/ca1ad3b221ec4cc6bbb8cd61d05421b9 [2021-11-05 12:04:48,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 12:04:48,813 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 12:04:48,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 12:04:48,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 12:04:48,821 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 12:04:48,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 12:04:48" (1/1) ... [2021-11-05 12:04:48,824 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d662087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:04:48, skipping insertion in model container [2021-11-05 12:04:48,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 12:04:48" (1/1) ... [2021-11-05 12:04:48,831 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 12:04:48,928 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 12:04:49,192 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4498,4511] [2021-11-05 12:04:49,199 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4558,4571] [2021-11-05 12:04:49,220 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 12:04:49,226 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 12:04:49,997 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 12:04:50,072 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:04:50,074 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:04:50,075 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:04:50,078 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:04:50,080 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:04:50,093 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:04:50,094 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:04:50,095 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:04:50,096 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:04:50,098 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:04:50,099 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:04:50,100 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:04:50,100 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:04:50,388 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 12:04:50,389 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 12:04:50,390 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 12:04:50,396 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 12:04:50,408 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 12:04:50,409 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 12:04:50,410 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 12:04:50,410 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 12:04:50,415 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 12:04:50,416 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 12:04:50,564 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:04:50,594 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:04:50,641 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 12:04:50,670 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 12:04:50,682 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4498,4511] [2021-11-05 12:04:50,682 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4558,4571] [2021-11-05 12:04:50,684 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 12:04:50,685 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 12:04:50,709 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 12:04:50,739 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:04:50,740 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:04:50,745 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:04:50,746 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:04:50,747 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:04:50,754 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:04:50,755 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:04:50,756 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:04:50,756 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:04:50,757 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:04:50,757 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:04:50,758 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:04:50,758 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:04:50,807 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 12:04:50,807 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 12:04:50,808 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 12:04:50,809 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 12:04:50,810 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 12:04:50,810 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 12:04:50,811 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 12:04:50,811 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 12:04:50,812 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 12:04:50,812 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 12:04:50,850 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:04:50,854 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:04:50,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 12:04:51,133 INFO L208 MainTranslator]: Completed translation [2021-11-05 12:04:51,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:04:51 WrapperNode [2021-11-05 12:04:51,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 12:04:51,135 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 12:04:51,135 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 12:04:51,135 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 12:04:51,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:04:51" (1/1) ... [2021-11-05 12:04:51,247 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:04:51" (1/1) ... [2021-11-05 12:04:51,376 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 12:04:51,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 12:04:51,379 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 12:04:51,379 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 12:04:51,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:04:51" (1/1) ... [2021-11-05 12:04:51,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:04:51" (1/1) ... [2021-11-05 12:04:51,403 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:04:51" (1/1) ... [2021-11-05 12:04:51,404 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:04:51" (1/1) ... [2021-11-05 12:04:51,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:04:51" (1/1) ... [2021-11-05 12:04:51,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:04:51" (1/1) ... [2021-11-05 12:04:51,523 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:04:51" (1/1) ... [2021-11-05 12:04:51,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 12:04:51,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 12:04:51,551 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 12:04:51,551 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 12:04:51,552 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:04:51" (1/1) ... [2021-11-05 12:04:51,559 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 12:04:51,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:04:51,589 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) [2021-11-05 12:04:51,612 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 [2021-11-05 12:04:51,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 12:04:51,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-05 12:04:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-05 12:04:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-05 12:04:51,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 12:04:51,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 12:04:51,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 12:04:51,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 12:04:51,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-05 12:04:51,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-05 12:04:51,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 12:04:51,635 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-05 12:04:51,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 12:04:51,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-05 12:04:51,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-05 12:04:51,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 12:05:05,796 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 12:05:05,797 INFO L299 CfgBuilder]: Removed 306 assume(true) statements. [2021-11-05 12:05:05,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 12:05:05 BoogieIcfgContainer [2021-11-05 12:05:05,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 12:05:05,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 12:05:05,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 12:05:05,808 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 12:05:05,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 12:04:48" (1/3) ... [2021-11-05 12:05:05,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315dcef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 12:05:05, skipping insertion in model container [2021-11-05 12:05:05,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:04:51" (2/3) ... [2021-11-05 12:05:05,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315dcef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 12:05:05, skipping insertion in model container [2021-11-05 12:05:05,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 12:05:05" (3/3) ... [2021-11-05 12:05:05,814 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_pop_front_harness.i [2021-11-05 12:05:05,830 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 12:05:05,834 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2021-11-05 12:05:05,880 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 12:05:05,893 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 [2021-11-05 12:05:05,893 INFO L340 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2021-11-05 12:05:05,923 INFO L276 IsEmpty]: Start isEmpty. Operand has 381 states, 360 states have (on average 1.4166666666666667) internal successors, (510), 380 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:05:05,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-05 12:05:05,930 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:05:05,931 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:05:05,932 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:05:05,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:05:05,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1102187548, now seen corresponding path program 1 times [2021-11-05 12:05:05,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 12:05:05,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [817076373] [2021-11-05 12:05:05,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:05:05,964 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 12:05:05,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 12:05:05,967 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 12:05:05,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-05 12:05:08,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:05:08,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 1386 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-05 12:05:08,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:05:08,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:05:08,667 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 12:05:08,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:05:08,867 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 12:05:08,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [817076373] [2021-11-05 12:05:08,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [817076373] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 12:05:08,868 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:05:08,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-05 12:05:08,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271653248] [2021-11-05 12:05:08,870 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 12:05:08,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 12:05:08,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 12:05:08,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 12:05:08,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 12:05:08,911 INFO L87 Difference]: Start difference. First operand has 381 states, 360 states have (on average 1.4166666666666667) internal successors, (510), 380 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:05:08,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:05:08,960 INFO L93 Difference]: Finished difference Result 758 states and 1015 transitions. [2021-11-05 12:05:08,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 12:05:08,967 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-05 12:05:08,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:05:08,978 INFO L225 Difference]: With dead ends: 758 [2021-11-05 12:05:08,978 INFO L226 Difference]: Without dead ends: 376 [2021-11-05 12:05:08,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.47ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 12:05:08,985 INFO L933 BasicCegarLoop]: 476 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.70ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 12:05:08,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 3.70ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 12:05:09,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2021-11-05 12:05:09,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2021-11-05 12:05:09,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 356 states have (on average 1.3230337078651686) internal successors, (471), 375 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:05:09,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 471 transitions. [2021-11-05 12:05:09,040 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 471 transitions. Word has length 33 [2021-11-05 12:05:09,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:05:09,040 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 471 transitions. [2021-11-05 12:05:09,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:05:09,041 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 471 transitions. [2021-11-05 12:05:09,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-05 12:05:09,042 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:05:09,042 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:05:09,099 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-05 12:05:09,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 12:05:09,264 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:05:09,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:05:09,264 INFO L85 PathProgramCache]: Analyzing trace with hash -977674992, now seen corresponding path program 1 times [2021-11-05 12:05:09,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 12:05:09,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [411278943] [2021-11-05 12:05:09,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:05:09,278 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 12:05:09,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 12:05:09,280 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 12:05:09,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-05 12:05:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:05:11,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 1386 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-05 12:05:11,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:05:11,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:05:11,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 12:05:12,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:05:12,061 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 12:05:12,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [411278943] [2021-11-05 12:05:12,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [411278943] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 12:05:12,062 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:05:12,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-05 12:05:12,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294505544] [2021-11-05 12:05:12,062 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 12:05:12,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 12:05:12,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 12:05:12,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 12:05:12,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 12:05:12,064 INFO L87 Difference]: Start difference. First operand 376 states and 471 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:05:12,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:05:12,138 INFO L93 Difference]: Finished difference Result 739 states and 927 transitions. [2021-11-05 12:05:12,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 12:05:12,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-05 12:05:12,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:05:12,145 INFO L225 Difference]: With dead ends: 739 [2021-11-05 12:05:12,148 INFO L226 Difference]: Without dead ends: 377 [2021-11-05 12:05:12,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.64ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 12:05:12,154 INFO L933 BasicCegarLoop]: 470 mSDtfsCounter, 0 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.52ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.13ms IncrementalHoareTripleChecker+Time [2021-11-05 12:05:12,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 936 Invalid, 5 Unknown, 0 Unchecked, 5.52ms Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 36.13ms Time] [2021-11-05 12:05:12,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-11-05 12:05:12,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2021-11-05 12:05:12,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 357 states have (on average 1.3221288515406162) internal successors, (472), 376 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:05:12,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 472 transitions. [2021-11-05 12:05:12,182 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 472 transitions. Word has length 33 [2021-11-05 12:05:12,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:05:12,182 INFO L470 AbstractCegarLoop]: Abstraction has 377 states and 472 transitions. [2021-11-05 12:05:12,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:05:12,184 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 472 transitions. [2021-11-05 12:05:12,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-05 12:05:12,186 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:05:12,186 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:05:12,238 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-05 12:05:12,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 12:05:12,408 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:05:12,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:05:12,408 INFO L85 PathProgramCache]: Analyzing trace with hash -468201902, now seen corresponding path program 1 times [2021-11-05 12:05:12,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 12:05:12,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [643804161] [2021-11-05 12:05:12,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:05:12,413 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 12:05:12,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 12:05:12,414 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 12:05:12,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-05 12:05:14,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:05:14,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 1388 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-05 12:05:14,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:05:14,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:05:14,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 12:05:15,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:05:15,072 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 12:05:15,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [643804161] [2021-11-05 12:05:15,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [643804161] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 12:05:15,072 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:05:15,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-05 12:05:15,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369977342] [2021-11-05 12:05:15,073 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 12:05:15,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 12:05:15,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 12:05:15,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 12:05:15,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 12:05:15,074 INFO L87 Difference]: Start difference. First operand 377 states and 472 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:05:16,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:05:16,151 INFO L93 Difference]: Finished difference Result 722 states and 904 transitions. [2021-11-05 12:05:16,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 12:05:16,152 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-05 12:05:16,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:05:16,154 INFO L225 Difference]: With dead ends: 722 [2021-11-05 12:05:16,154 INFO L226 Difference]: Without dead ends: 377 [2021-11-05 12:05:16,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 61.66ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:05:16,156 INFO L933 BasicCegarLoop]: 439 mSDtfsCounter, 526 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 827.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.52ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 999.44ms IncrementalHoareTripleChecker+Time [2021-11-05 12:05:16,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [526 Valid, 725 Invalid, 145 Unknown, 0 Unchecked, 7.52ms Time], IncrementalHoareTripleChecker [5 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 999.44ms Time] [2021-11-05 12:05:16,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-11-05 12:05:16,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2021-11-05 12:05:16,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 357 states have (on average 1.3137254901960784) internal successors, (469), 376 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:05:16,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 469 transitions. [2021-11-05 12:05:16,195 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 469 transitions. Word has length 33 [2021-11-05 12:05:16,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:05:16,195 INFO L470 AbstractCegarLoop]: Abstraction has 377 states and 469 transitions. [2021-11-05 12:05:16,195 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:05:16,196 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 469 transitions. [2021-11-05 12:05:16,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-05 12:05:16,197 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:05:16,197 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:05:16,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-05 12:05:16,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 12:05:16,410 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:05:16,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:05:16,411 INFO L85 PathProgramCache]: Analyzing trace with hash 721547164, now seen corresponding path program 1 times [2021-11-05 12:05:16,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 12:05:16,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2109831670] [2021-11-05 12:05:16,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:05:16,416 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 12:05:16,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 12:05:16,417 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 12:05:16,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-05 12:05:18,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:05:18,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 1491 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-05 12:05:18,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:05:19,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:05:19,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 12:05:19,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:05:19,252 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 12:05:19,253 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2109831670] [2021-11-05 12:05:19,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2109831670] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 12:05:19,253 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:05:19,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-05 12:05:19,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626387053] [2021-11-05 12:05:19,254 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 12:05:19,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 12:05:19,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 12:05:19,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 12:05:19,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 12:05:19,255 INFO L87 Difference]: Start difference. First operand 377 states and 469 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:05:20,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:05:20,385 INFO L93 Difference]: Finished difference Result 803 states and 1012 transitions. [2021-11-05 12:05:20,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 12:05:20,387 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-05 12:05:20,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:05:20,389 INFO L225 Difference]: With dead ends: 803 [2021-11-05 12:05:20,389 INFO L226 Difference]: Without dead ends: 457 [2021-11-05 12:05:20,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 46.95ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:05:20,391 INFO L933 BasicCegarLoop]: 522 mSDtfsCounter, 118 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 946.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.34ms SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1065.06ms IncrementalHoareTripleChecker+Time [2021-11-05 12:05:20,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 1234 Invalid, 299 Unknown, 0 Unchecked, 7.34ms Time], IncrementalHoareTripleChecker [61 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 1065.06ms Time] [2021-11-05 12:05:20,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2021-11-05 12:05:20,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 409. [2021-11-05 12:05:20,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 389 states have (on average 1.287917737789203) internal successors, (501), 408 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:05:20,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 501 transitions. [2021-11-05 12:05:20,405 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 501 transitions. Word has length 49 [2021-11-05 12:05:20,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:05:20,405 INFO L470 AbstractCegarLoop]: Abstraction has 409 states and 501 transitions. [2021-11-05 12:05:20,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:05:20,406 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 501 transitions. [2021-11-05 12:05:20,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-05 12:05:20,407 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:05:20,407 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:05:20,451 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-05 12:05:20,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 12:05:20,620 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:05:20,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:05:20,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1884476390, now seen corresponding path program 1 times [2021-11-05 12:05:20,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 12:05:20,623 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [483648429] [2021-11-05 12:05:20,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:05:20,623 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 12:05:20,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 12:05:20,625 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 12:05:20,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-05 12:05:23,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:05:23,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 1494 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-05 12:05:23,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:05:23,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:05:23,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 12:05:23,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:05:23,970 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 12:05:23,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [483648429] [2021-11-05 12:05:23,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [483648429] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 12:05:23,970 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:05:23,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-05 12:05:23,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817748929] [2021-11-05 12:05:23,970 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 12:05:23,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 12:05:23,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 12:05:23,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 12:05:23,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-05 12:05:23,972 INFO L87 Difference]: Start difference. First operand 409 states and 501 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:05:25,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:05:25,675 INFO L93 Difference]: Finished difference Result 809 states and 982 transitions. [2021-11-05 12:05:25,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 12:05:25,676 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-05 12:05:25,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:05:25,678 INFO L225 Difference]: With dead ends: 809 [2021-11-05 12:05:25,678 INFO L226 Difference]: Without dead ends: 479 [2021-11-05 12:05:25,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 249.80ms TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-05 12:05:25,680 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 1450 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1279.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1450 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.12ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1484.72ms IncrementalHoareTripleChecker+Time [2021-11-05 12:05:25,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1450 Valid, 915 Invalid, 214 Unknown, 0 Unchecked, 9.12ms Time], IncrementalHoareTripleChecker [30 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 1484.72ms Time] [2021-11-05 12:05:25,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2021-11-05 12:05:25,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 409. [2021-11-05 12:05:25,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 389 states have (on average 1.275064267352185) internal successors, (496), 408 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:05:25,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 496 transitions. [2021-11-05 12:05:25,694 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 496 transitions. Word has length 49 [2021-11-05 12:05:25,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:05:25,696 INFO L470 AbstractCegarLoop]: Abstraction has 409 states and 496 transitions. [2021-11-05 12:05:25,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:05:25,697 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 496 transitions. [2021-11-05 12:05:25,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-05 12:05:25,702 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:05:25,702 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:05:25,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-05 12:05:25,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 12:05:25,916 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:05:25,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:05:25,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1740025118, now seen corresponding path program 1 times [2021-11-05 12:05:25,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 12:05:25,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [199548747] [2021-11-05 12:05:25,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:05:25,920 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 12:05:25,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 12:05:25,922 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 12:05:25,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-05 12:09:09,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:09:12,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 1600 conjuncts, 134 conjunts are in the unsatisfiable core [2021-11-05 12:09:12,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:09:12,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-05 12:09:13,801 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 11 treesize of output 7 [2021-11-05 12:09:13,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:09:13,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:09:13,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:09:13,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:09:13,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:09:13,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:09:13,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:09:13,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:09:13,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:09:13,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:09:13,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 47 [2021-11-05 12:09:13,893 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 11 treesize of output 7 [2021-11-05 12:09:14,399 INFO L354 Elim1Store]: treesize reduction 58, result has 26.6 percent of original size [2021-11-05 12:09:14,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 34 treesize of output 44 [2021-11-05 12:09:14,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:09:14,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:09:14,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:09:14,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:09:14,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:09:14,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:09:15,274 INFO L354 Elim1Store]: treesize reduction 24, result has 29.4 percent of original size [2021-11-05 12:09:15,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 109 treesize of output 121 [2021-11-05 12:09:15,322 INFO L354 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2021-11-05 12:09:15,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 109 treesize of output 83 [2021-11-05 12:09:15,364 INFO L354 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2021-11-05 12:09:15,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 83 treesize of output 57 [2021-11-05 12:09:36,833 INFO L354 Elim1Store]: treesize reduction 42, result has 33.3 percent of original size [2021-11-05 12:09:36,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 64 treesize of output 77 [2021-11-05 12:09:51,207 INFO L354 Elim1Store]: treesize reduction 151, result has 26.3 percent of original size [2021-11-05 12:09:51,208 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 15 case distinctions, treesize of input 95 treesize of output 134 [2021-11-05 12:10:53,720 INFO L354 Elim1Store]: treesize reduction 223, result has 20.4 percent of original size [2021-11-05 12:10:53,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 117 treesize of output 157 [2021-11-05 12:12:27,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:12:27,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:12:27,834 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-05 12:12:27,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:12:27,838 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-05 12:12:30,190 INFO L354 Elim1Store]: treesize reduction 267, result has 19.1 percent of original size [2021-11-05 12:12:30,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 7 disjoint index pairs (out of 28 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 248 treesize of output 272 [2021-11-05 12:12:30,280 INFO L354 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2021-11-05 12:12:30,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 286 treesize of output 263 [2021-11-05 12:12:30,344 INFO L354 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2021-11-05 12:12:30,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 260 treesize of output 237 [2021-11-05 12:13:04,774 INFO L354 Elim1Store]: treesize reduction 120, result has 23.6 percent of original size [2021-11-05 12:13:04,774 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 154 treesize of output 179 [2021-11-05 12:13:15,334 INFO L354 Elim1Store]: treesize reduction 294, result has 19.0 percent of original size [2021-11-05 12:13:15,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 181 treesize of output 231 [2021-11-05 12:13:24,077 INFO L354 Elim1Store]: treesize reduction 249, result has 19.7 percent of original size [2021-11-05 12:13:24,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 206 treesize of output 234 [2021-11-05 12:13:24,127 INFO L354 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2021-11-05 12:13:24,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 240 treesize of output 217 [2021-11-05 12:13:24,178 INFO L354 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2021-11-05 12:13:24,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 214 treesize of output 191 Killed by 15