./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b 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_copy_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 3a98a47bac7562a35bba31573ebdfd704a9d27baca1b439deea796ac12a0961b --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-03 21:50:45,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 21:50:45,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 21:50:45,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 21:50:45,474 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 21:50:45,477 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 21:50:45,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 21:50:45,480 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 21:50:45,481 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 21:50:45,484 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 21:50:45,485 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 21:50:45,486 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 21:50:45,486 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 21:50:45,488 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 21:50:45,489 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 21:50:45,492 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 21:50:45,493 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 21:50:45,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 21:50:45,495 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 21:50:45,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 21:50:45,500 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 21:50:45,501 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 21:50:45,502 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 21:50:45,502 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 21:50:45,507 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 21:50:45,507 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 21:50:45,508 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 21:50:45,509 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 21:50:45,509 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 21:50:45,510 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 21:50:45,510 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 21:50:45,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 21:50:45,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 21:50:45,512 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 21:50:45,513 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 21:50:45,514 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 21:50:45,514 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 21:50:45,514 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 21:50:45,514 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 21:50:45,515 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 21:50:45,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 21:50:45,517 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-03 21:50:45,542 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 21:50:45,543 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 21:50:45,543 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-03 21:50:45,543 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-03 21:50:45,544 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 21:50:45,544 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 21:50:45,545 INFO L138 SettingsManager]: * Use SBE=true [2021-11-03 21:50:45,545 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 21:50:45,545 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 21:50:45,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 21:50:45,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 21:50:45,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 21:50:45,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 21:50:45,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 21:50:45,546 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 21:50:45,547 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 21:50:45,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 21:50:45,547 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 21:50:45,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 21:50:45,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 21:50:45,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 21:50:45,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 21:50:45,548 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 21:50:45,548 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-03 21:50:45,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 21:50:45,548 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-03 21:50:45,548 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-03 21:50:45,549 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 21:50:45,550 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 21:50:45,550 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a98a47bac7562a35bba31573ebdfd704a9d27baca1b439deea796ac12a0961b [2021-11-03 21:50:45,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 21:50:45,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 21:50:45,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 21:50:45,786 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 21:50:45,787 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 21:50:45,788 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness.i [2021-11-03 21:50:45,829 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f76dc3b6/3db7e067f0f541918bc0cf0429fe5929/FLAG61011e139 [2021-11-03 21:50:46,461 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 21:50:46,462 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness.i [2021-11-03 21:50:46,490 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f76dc3b6/3db7e067f0f541918bc0cf0429fe5929/FLAG61011e139 [2021-11-03 21:50:46,813 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f76dc3b6/3db7e067f0f541918bc0cf0429fe5929 [2021-11-03 21:50:46,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 21:50:46,816 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 21:50:46,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 21:50:46,819 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 21:50:46,821 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 21:50:46,821 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 09:50:46" (1/1) ... [2021-11-03 21:50:46,822 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@747cbc9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:50:46, skipping insertion in model container [2021-11-03 21:50:46,822 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 09:50:46" (1/1) ... [2021-11-03 21:50:46,826 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 21:50:46,891 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 21:50:47,093 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_copy_harness.i[4493,4506] [2021-11-03 21:50:47,098 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_copy_harness.i[4553,4566] [2021-11-03 21:50:47,110 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 21:50:47,113 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 21:50:47,618 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 21:50:47,675 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:47,677 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:47,678 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:47,678 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:47,679 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:47,694 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:47,695 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:47,696 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:47,697 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:47,698 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:47,699 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:47,699 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:47,701 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:47,907 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 21:50:47,908 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 21:50:47,909 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 21:50:47,913 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 21:50:47,914 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 21:50:47,914 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 21:50:47,915 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 21:50:47,915 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 21:50:47,916 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 21:50:47,917 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 21:50:48,043 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:48,058 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:48,061 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:48,071 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:48,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 21:50:48,221 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 21:50:48,244 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_copy_harness.i[4493,4506] [2021-11-03 21:50:48,245 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_copy_harness.i[4553,4566] [2021-11-03 21:50:48,264 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 21:50:48,264 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 21:50:48,340 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 21:50:48,357 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:48,359 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:48,359 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:48,359 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:48,360 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:48,374 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:48,374 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:48,375 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:48,375 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:48,376 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:48,377 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:48,377 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:48,377 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:48,421 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 21:50:48,423 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 21:50:48,423 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 21:50:48,424 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 21:50:48,424 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 21:50:48,439 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 21:50:48,440 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 21:50:48,440 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 21:50:48,441 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 21:50:48,441 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 21:50:48,477 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:48,478 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:48,479 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:48,481 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:50:48,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 21:50:48,799 INFO L208 MainTranslator]: Completed translation [2021-11-03 21:50:48,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:50:48 WrapperNode [2021-11-03 21:50:48,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 21:50:48,801 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 21:50:48,801 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 21:50:48,801 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 21:50:48,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:50:48" (1/1) ... [2021-11-03 21:50:48,912 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:50:48" (1/1) ... [2021-11-03 21:50:48,990 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 21:50:48,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 21:50:48,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 21:50:48,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 21:50:48,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:50:48" (1/1) ... [2021-11-03 21:50:48,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:50:48" (1/1) ... [2021-11-03 21:50:49,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:50:48" (1/1) ... [2021-11-03 21:50:49,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:50:48" (1/1) ... [2021-11-03 21:50:49,059 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:50:48" (1/1) ... [2021-11-03 21:50:49,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:50:48" (1/1) ... [2021-11-03 21:50:49,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:50:48" (1/1) ... [2021-11-03 21:50:49,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 21:50:49,101 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 21:50:49,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 21:50:49,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 21:50:49,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:50:48" (1/1) ... [2021-11-03 21:50:49,107 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 21:50:49,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 21:50:49,127 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) [2021-11-03 21:50:49,170 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 [2021-11-03 21:50:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 21:50:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 21:50:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 21:50:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 21:50:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 21:50:49,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 21:50:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 21:50:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 21:50:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 21:50:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 21:50:49,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 21:50:49,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 21:50:53,389 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 21:50:53,390 INFO L299 CfgBuilder]: Removed 324 assume(true) statements. [2021-11-03 21:50:53,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 09:50:53 BoogieIcfgContainer [2021-11-03 21:50:53,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 21:50:53,393 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 21:50:53,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 21:50:53,396 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 21:50:53,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 09:50:46" (1/3) ... [2021-11-03 21:50:53,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b47802 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 09:50:53, skipping insertion in model container [2021-11-03 21:50:53,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:50:48" (2/3) ... [2021-11-03 21:50:53,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b47802 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 09:50:53, skipping insertion in model container [2021-11-03 21:50:53,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 09:50:53" (3/3) ... [2021-11-03 21:50:53,399 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_copy_harness.i [2021-11-03 21:50:53,403 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 21:50:53,403 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-11-03 21:50:53,443 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 21:50:53,453 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 [2021-11-03 21:50:53,454 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-11-03 21:50:53,473 INFO L276 IsEmpty]: Start isEmpty. Operand has 369 states, 355 states have (on average 1.4) internal successors, (497), 368 states have internal predecessors, (497), 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) [2021-11-03 21:50:53,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-03 21:50:53,480 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:50:53,481 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] [2021-11-03 21:50:53,481 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 21:50:53,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:50:53,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1546678732, now seen corresponding path program 1 times [2021-11-03 21:50:53,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 21:50:53,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222194606] [2021-11-03 21:50:53,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:50:53,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 21:50:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:50:54,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:50:54,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 21:50:54,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222194606] [2021-11-03 21:50:54,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222194606] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 21:50:54,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:50:54,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 21:50:54,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860916159] [2021-11-03 21:50:54,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 21:50:54,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 21:50:54,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 21:50:54,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 21:50:54,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 21:50:54,061 INFO L87 Difference]: Start difference. First operand has 369 states, 355 states have (on average 1.4) internal successors, (497), 368 states have internal predecessors, (497), 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 26.5) internal successors, (53), 2 states have internal predecessors, (53), 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) [2021-11-03 21:50:56,139 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:50:57,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:50:57,965 INFO L93 Difference]: Finished difference Result 734 states and 989 transitions. [2021-11-03 21:50:57,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 21:50:57,967 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 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 53 [2021-11-03 21:50:57,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:50:57,978 INFO L225 Difference]: With dead ends: 734 [2021-11-03 21:50:57,978 INFO L226 Difference]: Without dead ends: 364 [2021-11-03 21:50:57,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 21:50:57,985 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3421.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.14ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3802.59ms IncrementalHoareTripleChecker+Time [2021-11-03 21:50:57,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 457 Unknown, 0 Unchecked, 7.14ms Time], IncrementalHoareTripleChecker [0 Valid, 456 Invalid, 1 Unknown, 0 Unchecked, 3802.59ms Time] [2021-11-03 21:50:58,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2021-11-03 21:50:58,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2021-11-03 21:50:58,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 351 states have (on average 1.2877492877492878) internal successors, (452), 363 states have internal predecessors, (452), 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) [2021-11-03 21:50:58,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 452 transitions. [2021-11-03 21:50:58,032 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 452 transitions. Word has length 53 [2021-11-03 21:50:58,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:50:58,033 INFO L470 AbstractCegarLoop]: Abstraction has 364 states and 452 transitions. [2021-11-03 21:50:58,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 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) [2021-11-03 21:50:58,033 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 452 transitions. [2021-11-03 21:50:58,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-03 21:50:58,034 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:50:58,034 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] [2021-11-03 21:50:58,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 21:50:58,035 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 21:50:58,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:50:58,036 INFO L85 PathProgramCache]: Analyzing trace with hash 481957526, now seen corresponding path program 1 times [2021-11-03 21:50:58,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 21:50:58,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371950332] [2021-11-03 21:50:58,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:50:58,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 21:50:58,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:50:58,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:50:58,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 21:50:58,244 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371950332] [2021-11-03 21:50:58,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371950332] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 21:50:58,244 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:50:58,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 21:50:58,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450550512] [2021-11-03 21:50:58,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 21:50:58,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 21:50:58,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 21:50:58,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 21:50:58,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 21:50:58,247 INFO L87 Difference]: Start difference. First operand 364 states and 452 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2021-11-03 21:50:59,683 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:51:01,980 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:51:04,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:51:04,941 INFO L93 Difference]: Finished difference Result 716 states and 891 transitions. [2021-11-03 21:51:04,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 21:51:04,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 53 [2021-11-03 21:51:04,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:51:04,946 INFO L225 Difference]: With dead ends: 716 [2021-11-03 21:51:04,946 INFO L226 Difference]: Without dead ends: 366 [2021-11-03 21:51:04,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.54ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 21:51:04,948 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5913.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.96ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 903 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6606.61ms IncrementalHoareTripleChecker+Time [2021-11-03 21:51:04,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 906 Unknown, 0 Unchecked, 14.96ms Time], IncrementalHoareTripleChecker [2 Valid, 903 Invalid, 1 Unknown, 0 Unchecked, 6606.61ms Time] [2021-11-03 21:51:04,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-11-03 21:51:04,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2021-11-03 21:51:04,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 353 states have (on average 1.2861189801699717) internal successors, (454), 365 states have internal predecessors, (454), 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) [2021-11-03 21:51:04,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 454 transitions. [2021-11-03 21:51:04,964 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 454 transitions. Word has length 53 [2021-11-03 21:51:04,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:51:04,965 INFO L470 AbstractCegarLoop]: Abstraction has 366 states and 454 transitions. [2021-11-03 21:51:04,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2021-11-03 21:51:04,965 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 454 transitions. [2021-11-03 21:51:04,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-03 21:51:04,971 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:51:04,971 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] [2021-11-03 21:51:04,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 21:51:04,971 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 21:51:04,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:51:04,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1457204520, now seen corresponding path program 1 times [2021-11-03 21:51:04,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 21:51:04,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499498092] [2021-11-03 21:51:04,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:51:04,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 21:51:05,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:51:05,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:51:05,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 21:51:05,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499498092] [2021-11-03 21:51:05,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499498092] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 21:51:05,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:51:05,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 21:51:05,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65122586] [2021-11-03 21:51:05,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 21:51:05,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 21:51:05,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 21:51:05,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 21:51:05,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 21:51:05,187 INFO L87 Difference]: Start difference. First operand 366 states and 454 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2021-11-03 21:51:06,730 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:51:08,615 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:51:11,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:51:11,049 INFO L93 Difference]: Finished difference Result 700 states and 868 transitions. [2021-11-03 21:51:11,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 21:51:11,050 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 53 [2021-11-03 21:51:11,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:51:11,051 INFO L225 Difference]: With dead ends: 700 [2021-11-03 21:51:11,051 INFO L226 Difference]: Without dead ends: 366 [2021-11-03 21:51:11,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.13ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 21:51:11,053 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 499 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5077.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.00ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5791.09ms IncrementalHoareTripleChecker+Time [2021-11-03 21:51:11,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [499 Valid, 0 Invalid, 841 Unknown, 0 Unchecked, 11.00ms Time], IncrementalHoareTripleChecker [2 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 5791.09ms Time] [2021-11-03 21:51:11,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-11-03 21:51:11,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2021-11-03 21:51:11,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 353 states have (on average 1.2804532577903682) internal successors, (452), 365 states have internal predecessors, (452), 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) [2021-11-03 21:51:11,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 452 transitions. [2021-11-03 21:51:11,066 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 452 transitions. Word has length 53 [2021-11-03 21:51:11,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:51:11,066 INFO L470 AbstractCegarLoop]: Abstraction has 366 states and 452 transitions. [2021-11-03 21:51:11,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2021-11-03 21:51:11,067 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 452 transitions. [2021-11-03 21:51:11,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-03 21:51:11,068 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:51:11,068 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] [2021-11-03 21:51:11,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-03 21:51:11,069 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 21:51:11,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:51:11,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1402449476, now seen corresponding path program 1 times [2021-11-03 21:51:11,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 21:51:11,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299160952] [2021-11-03 21:51:11,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:51:11,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 21:51:11,158 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 21:51:11,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1300154157] [2021-11-03 21:51:11,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:51:11,159 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 21:51:11,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 21:51:11,176 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) [2021-11-03 21:51:11,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-03 21:51:11,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:51:11,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 2556 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 21:51:11,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:51:12,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:51:12,245 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 21:51:12,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 21:51:12,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299160952] [2021-11-03 21:51:12,245 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 21:51:12,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300154157] [2021-11-03 21:51:12,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300154157] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 21:51:12,245 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:51:12,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 21:51:12,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625166848] [2021-11-03 21:51:12,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 21:51:12,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 21:51:12,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 21:51:12,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 21:51:12,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 21:51:12,247 INFO L87 Difference]: Start difference. First operand 366 states and 452 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2021-11-03 21:51:13,706 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:51:15,663 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:51:17,931 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:51:20,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:51:20,997 INFO L93 Difference]: Finished difference Result 667 states and 824 transitions. [2021-11-03 21:51:20,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 21:51:20,998 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 61 [2021-11-03 21:51:20,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:51:20,999 INFO L225 Difference]: With dead ends: 667 [2021-11-03 21:51:20,999 INFO L226 Difference]: Without dead ends: 366 [2021-11-03 21:51:21,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 103.31ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 21:51:21,001 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 915 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7446.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 915 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.05ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8603.94ms IncrementalHoareTripleChecker+Time [2021-11-03 21:51:21,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [915 Valid, 0 Invalid, 846 Unknown, 0 Unchecked, 17.05ms Time], IncrementalHoareTripleChecker [2 Valid, 843 Invalid, 1 Unknown, 0 Unchecked, 8603.94ms Time] [2021-11-03 21:51:21,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-11-03 21:51:21,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2021-11-03 21:51:21,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 353 states have (on average 1.274787535410765) internal successors, (450), 365 states have internal predecessors, (450), 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) [2021-11-03 21:51:21,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 450 transitions. [2021-11-03 21:51:21,015 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 450 transitions. Word has length 61 [2021-11-03 21:51:21,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:51:21,015 INFO L470 AbstractCegarLoop]: Abstraction has 366 states and 450 transitions. [2021-11-03 21:51:21,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2021-11-03 21:51:21,016 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 450 transitions. [2021-11-03 21:51:21,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-03 21:51:21,016 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:51:21,017 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, 1, 1, 1, 1] [2021-11-03 21:51:21,045 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-03 21:51:21,240 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 [2021-11-03 21:51:21,241 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 21:51:21,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:51:21,241 INFO L85 PathProgramCache]: Analyzing trace with hash -995056424, now seen corresponding path program 1 times [2021-11-03 21:51:21,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 21:51:21,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017903520] [2021-11-03 21:51:21,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:51:21,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 21:51:21,330 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 21:51:21,331 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [375626631] [2021-11-03 21:51:21,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:51:21,331 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 21:51:21,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 21:51:21,336 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) [2021-11-03 21:51:21,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-03 21:51:22,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:51:22,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 2651 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 21:51:22,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:51:22,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:51:22,526 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 21:51:22,526 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 21:51:22,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017903520] [2021-11-03 21:51:22,526 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 21:51:22,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375626631] [2021-11-03 21:51:22,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375626631] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 21:51:22,527 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:51:22,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-03 21:51:22,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909591864] [2021-11-03 21:51:22,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 21:51:22,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 21:51:22,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 21:51:22,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 21:51:22,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-03 21:51:22,528 INFO L87 Difference]: Start difference. First operand 366 states and 450 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 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) [2021-11-03 21:51:24,236 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:51:26,557 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:51:28,833 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:51:31,241 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:51:34,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:51:34,191 INFO L93 Difference]: Finished difference Result 643 states and 792 transitions. [2021-11-03 21:51:34,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 21:51:34,192 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 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 69 [2021-11-03 21:51:34,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:51:34,193 INFO L225 Difference]: With dead ends: 643 [2021-11-03 21:51:34,193 INFO L226 Difference]: Without dead ends: 366 [2021-11-03 21:51:34,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 198.04ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-03 21:51:34,194 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1356 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9709.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1356 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.65ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11455.36ms IncrementalHoareTripleChecker+Time [2021-11-03 21:51:34,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1356 Valid, 0 Invalid, 811 Unknown, 0 Unchecked, 13.65ms Time], IncrementalHoareTripleChecker [10 Valid, 800 Invalid, 1 Unknown, 0 Unchecked, 11455.36ms Time] [2021-11-03 21:51:34,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-11-03 21:51:34,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2021-11-03 21:51:34,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 353 states have (on average 1.2606232294617563) internal successors, (445), 365 states have internal predecessors, (445), 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) [2021-11-03 21:51:34,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 445 transitions. [2021-11-03 21:51:34,202 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 445 transitions. Word has length 69 [2021-11-03 21:51:34,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:51:34,203 INFO L470 AbstractCegarLoop]: Abstraction has 366 states and 445 transitions. [2021-11-03 21:51:34,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 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) [2021-11-03 21:51:34,203 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 445 transitions. [2021-11-03 21:51:34,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-03 21:51:34,204 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:51:34,204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:51:34,225 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-03 21:51:34,419 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 [2021-11-03 21:51:34,419 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 21:51:34,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:51:34,420 INFO L85 PathProgramCache]: Analyzing trace with hash 995676554, now seen corresponding path program 1 times [2021-11-03 21:51:34,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 21:51:34,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775004636] [2021-11-03 21:51:34,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:51:34,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 21:51:34,502 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 21:51:34,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2023332433] [2021-11-03 21:51:34,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:51:34,503 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 21:51:34,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 21:51:34,520 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) [2021-11-03 21:51:34,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-03 21:51:35,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:51:35,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 2766 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 21:51:35,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:51:35,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:51:35,357 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 21:51:35,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 21:51:35,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775004636] [2021-11-03 21:51:35,357 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 21:51:35,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023332433] [2021-11-03 21:51:35,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023332433] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 21:51:35,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:51:35,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 21:51:35,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523370846] [2021-11-03 21:51:35,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 21:51:35,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 21:51:35,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 21:51:35,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 21:51:35,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 21:51:35,358 INFO L87 Difference]: Start difference. First operand 366 states and 445 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2021-11-03 21:51:37,286 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:51:39,891 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.60s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:51:42,218 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:51:46,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:51:46,660 INFO L93 Difference]: Finished difference Result 771 states and 950 transitions. [2021-11-03 21:51:46,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 21:51:46,661 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 81 [2021-11-03 21:51:46,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:51:46,663 INFO L225 Difference]: With dead ends: 771 [2021-11-03 21:51:46,663 INFO L226 Difference]: Without dead ends: 436 [2021-11-03 21:51:46,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 41.07ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 21:51:46,669 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 104 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 1385 mSolverCounterSat, 53 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9667.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.75ms SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1385 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11189.03ms IncrementalHoareTripleChecker+Time [2021-11-03 21:51:46,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 0 Invalid, 1440 Unknown, 0 Unchecked, 10.75ms Time], IncrementalHoareTripleChecker [53 Valid, 1385 Invalid, 2 Unknown, 0 Unchecked, 11189.03ms Time] [2021-11-03 21:51:46,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2021-11-03 21:51:46,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 394. [2021-11-03 21:51:46,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 381 states have (on average 1.2414698162729658) internal successors, (473), 393 states have internal predecessors, (473), 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) [2021-11-03 21:51:46,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 473 transitions. [2021-11-03 21:51:46,696 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 473 transitions. Word has length 81 [2021-11-03 21:51:46,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:51:46,697 INFO L470 AbstractCegarLoop]: Abstraction has 394 states and 473 transitions. [2021-11-03 21:51:46,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2021-11-03 21:51:46,697 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 473 transitions. [2021-11-03 21:51:46,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-03 21:51:46,699 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:51:46,699 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:51:46,721 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-03 21:51:46,901 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 [2021-11-03 21:51:46,902 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 21:51:46,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:51:46,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1129690060, now seen corresponding path program 1 times [2021-11-03 21:51:46,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 21:51:46,903 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082650426] [2021-11-03 21:51:46,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:51:46,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 21:51:46,950 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 21:51:46,950 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1776515471] [2021-11-03 21:51:46,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:51:46,950 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 21:51:46,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 21:51:46,957 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 21:51:46,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-03 21:51:47,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:51:47,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 2771 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 21:51:47,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:51:48,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:51:48,151 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 21:51:48,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 21:51:48,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082650426] [2021-11-03 21:51:48,152 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 21:51:48,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776515471] [2021-11-03 21:51:48,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1776515471] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 21:51:48,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:51:48,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-03 21:51:48,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476597884] [2021-11-03 21:51:48,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 21:51:48,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 21:51:48,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 21:51:48,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 21:51:48,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-03 21:51:48,153 INFO L87 Difference]: Start difference. First operand 394 states and 473 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 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) [2021-11-03 21:51:50,078 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:51:52,582 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:51:55,131 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.55s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:51:57,635 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:52:00,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:52:00,437 INFO L93 Difference]: Finished difference Result 675 states and 810 transitions. [2021-11-03 21:52:00,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 21:52:00,438 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 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 81 [2021-11-03 21:52:00,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:52:00,440 INFO L225 Difference]: With dead ends: 675 [2021-11-03 21:52:00,440 INFO L226 Difference]: Without dead ends: 394 [2021-11-03 21:52:00,440 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 169.71ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-03 21:52:00,441 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1403 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9816.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1403 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.66ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12104.01ms IncrementalHoareTripleChecker+Time [2021-11-03 21:52:00,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1403 Valid, 0 Invalid, 727 Unknown, 0 Unchecked, 9.66ms Time], IncrementalHoareTripleChecker [16 Valid, 710 Invalid, 1 Unknown, 0 Unchecked, 12104.01ms Time] [2021-11-03 21:52:00,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2021-11-03 21:52:00,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2021-11-03 21:52:00,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 381 states have (on average 1.2283464566929134) internal successors, (468), 393 states have internal predecessors, (468), 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) [2021-11-03 21:52:00,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 468 transitions. [2021-11-03 21:52:00,449 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 468 transitions. Word has length 81 [2021-11-03 21:52:00,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:52:00,450 INFO L470 AbstractCegarLoop]: Abstraction has 394 states and 468 transitions. [2021-11-03 21:52:00,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 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) [2021-11-03 21:52:00,450 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 468 transitions. [2021-11-03 21:52:00,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-03 21:52:00,451 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:52:00,451 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:52:00,472 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-03 21:52:00,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 21:52:00,671 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 21:52:00,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:52:00,672 INFO L85 PathProgramCache]: Analyzing trace with hash 224097512, now seen corresponding path program 1 times [2021-11-03 21:52:00,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 21:52:00,672 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510049285] [2021-11-03 21:52:00,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:52:00,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 21:52:00,738 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 21:52:00,739 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [449196211] [2021-11-03 21:52:00,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:52:00,739 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 21:52:00,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 21:52:00,740 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 21:52:00,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-03 21:52:01,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:52:01,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 2866 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 21:52:01,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:52:01,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:52:01,555 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 21:52:01,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 21:52:01,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510049285] [2021-11-03 21:52:01,555 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 21:52:01,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449196211] [2021-11-03 21:52:01,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [449196211] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 21:52:01,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:52:01,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-03 21:52:01,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55680249] [2021-11-03 21:52:01,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 21:52:01,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 21:52:01,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 21:52:01,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 21:52:01,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 21:52:01,557 INFO L87 Difference]: Start difference. First operand 394 states and 468 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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) [2021-11-03 21:52:03,593 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:52:11,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:52:11,184 INFO L93 Difference]: Finished difference Result 872 states and 1039 transitions. [2021-11-03 21:52:11,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 21:52:11,185 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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 89 [2021-11-03 21:52:11,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:52:11,187 INFO L225 Difference]: With dead ends: 872 [2021-11-03 21:52:11,188 INFO L226 Difference]: Without dead ends: 820 [2021-11-03 21:52:11,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 104.72ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 21:52:11,189 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 516 mSDsluCounter, 1920 mSDsCounter, 0 mSdLazyCounter, 2771 mSolverCounterSat, 23 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8495.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.67ms SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2771 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9447.93ms IncrementalHoareTripleChecker+Time [2021-11-03 21:52:11,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [516 Valid, 0 Invalid, 2795 Unknown, 0 Unchecked, 13.67ms Time], IncrementalHoareTripleChecker [23 Valid, 2771 Invalid, 1 Unknown, 0 Unchecked, 9447.93ms Time] [2021-11-03 21:52:11,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2021-11-03 21:52:11,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 396. [2021-11-03 21:52:11,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 383 states have (on average 1.227154046997389) internal successors, (470), 395 states have internal predecessors, (470), 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) [2021-11-03 21:52:11,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 470 transitions. [2021-11-03 21:52:11,200 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 470 transitions. Word has length 89 [2021-11-03 21:52:11,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:52:11,200 INFO L470 AbstractCegarLoop]: Abstraction has 396 states and 470 transitions. [2021-11-03 21:52:11,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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) [2021-11-03 21:52:11,201 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 470 transitions. [2021-11-03 21:52:11,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-03 21:52:11,201 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:52:11,201 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:52:11,224 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-03 21:52:11,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 21:52:11,424 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 21:52:11,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:52:11,424 INFO L85 PathProgramCache]: Analyzing trace with hash 923773556, now seen corresponding path program 1 times [2021-11-03 21:52:11,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 21:52:11,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40634236] [2021-11-03 21:52:11,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:52:11,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 21:52:11,496 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 21:52:11,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1960220891] [2021-11-03 21:52:11,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:52:11,496 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 21:52:11,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 21:52:11,516 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 21:52:11,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-03 21:52:12,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:52:12,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 2936 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 21:52:12,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:52:12,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:52:12,434 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 21:52:12,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 21:52:12,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40634236] [2021-11-03 21:52:12,434 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 21:52:12,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960220891] [2021-11-03 21:52:12,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960220891] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 21:52:12,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:52:12,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-03 21:52:12,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857626155] [2021-11-03 21:52:12,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 21:52:12,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 21:52:12,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 21:52:12,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 21:52:12,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 21:52:12,435 INFO L87 Difference]: Start difference. First operand 396 states and 470 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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) [2021-11-03 21:52:14,472 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:52:19,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:52:19,911 INFO L93 Difference]: Finished difference Result 797 states and 942 transitions. [2021-11-03 21:52:19,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 21:52:19,912 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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 93 [2021-11-03 21:52:19,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:52:19,914 INFO L225 Difference]: With dead ends: 797 [2021-11-03 21:52:19,914 INFO L226 Difference]: Without dead ends: 711 [2021-11-03 21:52:19,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 133.29ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 21:52:19,915 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 635 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 1733 mSolverCounterSat, 30 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6461.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.70ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1733 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7333.47ms IncrementalHoareTripleChecker+Time [2021-11-03 21:52:19,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [635 Valid, 0 Invalid, 1764 Unknown, 0 Unchecked, 11.70ms Time], IncrementalHoareTripleChecker [30 Valid, 1733 Invalid, 1 Unknown, 0 Unchecked, 7333.47ms Time] [2021-11-03 21:52:19,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2021-11-03 21:52:19,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 399. [2021-11-03 21:52:19,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 386 states have (on average 1.2253886010362693) internal successors, (473), 398 states have internal predecessors, (473), 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) [2021-11-03 21:52:19,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 473 transitions. [2021-11-03 21:52:19,931 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 473 transitions. Word has length 93 [2021-11-03 21:52:19,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:52:19,931 INFO L470 AbstractCegarLoop]: Abstraction has 399 states and 473 transitions. [2021-11-03 21:52:19,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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) [2021-11-03 21:52:19,932 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 473 transitions. [2021-11-03 21:52:19,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-03 21:52:19,932 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:52:19,933 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:52:19,957 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-11-03 21:52:20,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 21:52:20,155 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 21:52:20,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:52:20,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1070736296, now seen corresponding path program 1 times [2021-11-03 21:52:20,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 21:52:20,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594800555] [2021-11-03 21:52:20,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:52:20,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 21:52:20,221 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 21:52:20,221 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2147057619] [2021-11-03 21:52:20,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:52:20,222 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 21:52:20,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 21:52:20,236 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 21:52:20,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-03 21:52:21,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:52:21,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 2945 conjuncts, 139 conjunts are in the unsatisfiable core [2021-11-03 21:52:21,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:52:21,203 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-03 21:52:21,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2021-11-03 21:52:22,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 21:52:22,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-03 21:52:22,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 21:52:22,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-03 21:52:22,443 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-11-03 21:52:22,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2021-11-03 21:52:22,631 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-03 21:52:22,631 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 57 treesize of output 45 [2021-11-03 21:52:22,665 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-03 21:52:22,665 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 42 treesize of output 30 [2021-11-03 21:52:23,787 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 0 case distinctions, treesize of input 41 treesize of output 40 [2021-11-03 21:52:23,795 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 0 case distinctions, treesize of input 30 treesize of output 29 [2021-11-03 21:52:24,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 21:52:24,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 37 [2021-11-03 21:52:24,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 21:52:24,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2021-11-03 21:52:25,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:52:25,334 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 21:52:25,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 21:52:25,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594800555] [2021-11-03 21:52:25,334 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 21:52:25,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2147057619] [2021-11-03 21:52:25,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2147057619] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 21:52:25,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:52:25,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-11-03 21:52:25,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948924124] [2021-11-03 21:52:25,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 21:52:25,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-03 21:52:25,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 21:52:25,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-03 21:52:25,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2021-11-03 21:52:25,335 INFO L87 Difference]: Start difference. First operand 399 states and 473 transitions. Second operand has 20 states, 20 states have (on average 4.75) internal successors, (95), 20 states have internal predecessors, (95), 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) [2021-11-03 21:52:27,374 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:52:40,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:52:40,594 INFO L93 Difference]: Finished difference Result 822 states and 974 transitions. [2021-11-03 21:52:40,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-03 21:52:40,595 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.75) internal successors, (95), 20 states have internal predecessors, (95), 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 95 [2021-11-03 21:52:40,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:52:40,596 INFO L225 Difference]: With dead ends: 822 [2021-11-03 21:52:40,596 INFO L226 Difference]: Without dead ends: 447 [2021-11-03 21:52:40,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 3119.59ms TimeCoverageRelationStatistics Valid=153, Invalid=659, Unknown=0, NotChecked=0, Total=812 [2021-11-03 21:52:40,598 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 229 mSDsluCounter, 3060 mSDsCounter, 0 mSdLazyCounter, 3882 mSolverCounterSat, 38 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12075.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 4856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.57ms SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 3882 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 935 IncrementalHoareTripleChecker+Unchecked, 13557.49ms IncrementalHoareTripleChecker+Time [2021-11-03 21:52:40,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 0 Invalid, 4856 Unknown, 0 Unchecked, 28.57ms Time], IncrementalHoareTripleChecker [38 Valid, 3882 Invalid, 1 Unknown, 935 Unchecked, 13557.49ms Time] [2021-11-03 21:52:40,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2021-11-03 21:52:40,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 443. [2021-11-03 21:52:40,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 430 states have (on average 1.2209302325581395) internal successors, (525), 442 states have internal predecessors, (525), 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) [2021-11-03 21:52:40,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 525 transitions. [2021-11-03 21:52:40,609 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 525 transitions. Word has length 95 [2021-11-03 21:52:40,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:52:40,609 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 525 transitions. [2021-11-03 21:52:40,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.75) internal successors, (95), 20 states have internal predecessors, (95), 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) [2021-11-03 21:52:40,609 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 525 transitions. [2021-11-03 21:52:40,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-03 21:52:40,610 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:52:40,610 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:52:40,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-03 21:52:40,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 21:52:40,834 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 21:52:40,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:52:40,834 INFO L85 PathProgramCache]: Analyzing trace with hash 753998706, now seen corresponding path program 1 times [2021-11-03 21:52:40,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 21:52:40,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875897656] [2021-11-03 21:52:40,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:52:40,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 21:52:40,924 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 21:52:40,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [699940313] [2021-11-03 21:52:40,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:52:40,925 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 21:52:40,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 21:52:40,926 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 21:52:40,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-03 21:52:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:52:41,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 2950 conjuncts, 71 conjunts are in the unsatisfiable core [2021-11-03 21:52:41,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:52:42,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 21:52:42,304 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 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-03 21:52:42,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 21:52:42,321 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 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-03 21:52:42,559 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 0 case distinctions, treesize of input 45 treesize of output 33 [2021-11-03 21:52:42,565 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 0 case distinctions, treesize of input 30 treesize of output 18 [2021-11-03 21:52:42,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:52:42,963 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 21:52:42,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 21:52:42,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875897656] [2021-11-03 21:52:42,963 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 21:52:42,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699940313] [2021-11-03 21:52:42,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699940313] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 21:52:42,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:52:42,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-03 21:52:42,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480145071] [2021-11-03 21:52:42,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 21:52:42,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 21:52:42,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 21:52:42,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 21:52:42,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-11-03 21:52:42,964 INFO L87 Difference]: Start difference. First operand 443 states and 525 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 12 states have internal predecessors, (97), 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) [2021-11-03 21:52:45,018 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:52:57,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:52:57,398 INFO L93 Difference]: Finished difference Result 1064 states and 1256 transitions. [2021-11-03 21:52:57,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-03 21:52:57,398 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 12 states have internal predecessors, (97), 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 97 [2021-11-03 21:52:57,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:52:57,400 INFO L225 Difference]: With dead ends: 1064 [2021-11-03 21:52:57,400 INFO L226 Difference]: Without dead ends: 729 [2021-11-03 21:52:57,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1587.35ms TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2021-11-03 21:52:57,402 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1534 mSDsluCounter, 2277 mSDsCounter, 0 mSdLazyCounter, 3822 mSolverCounterSat, 93 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11763.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1534 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.70ms SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 3822 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13071.47ms IncrementalHoareTripleChecker+Time [2021-11-03 21:52:57,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1534 Valid, 0 Invalid, 3916 Unknown, 0 Unchecked, 28.70ms Time], IncrementalHoareTripleChecker [93 Valid, 3822 Invalid, 1 Unknown, 0 Unchecked, 13071.47ms Time] [2021-11-03 21:52:57,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2021-11-03 21:52:57,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 648. [2021-11-03 21:52:57,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 635 states have (on average 1.2220472440944883) internal successors, (776), 647 states have internal predecessors, (776), 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) [2021-11-03 21:52:57,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 776 transitions. [2021-11-03 21:52:57,422 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 776 transitions. Word has length 97 [2021-11-03 21:52:57,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:52:57,423 INFO L470 AbstractCegarLoop]: Abstraction has 648 states and 776 transitions. [2021-11-03 21:52:57,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 12 states have internal predecessors, (97), 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) [2021-11-03 21:52:57,423 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 776 transitions. [2021-11-03 21:52:57,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-03 21:52:57,424 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:52:57,424 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:52:57,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-03 21:52:57,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-03 21:52:57,648 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 21:52:57,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:52:57,648 INFO L85 PathProgramCache]: Analyzing trace with hash 955822640, now seen corresponding path program 1 times [2021-11-03 21:52:57,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 21:52:57,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174115167] [2021-11-03 21:52:57,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:52:57,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 21:52:57,710 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 21:52:57,711 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [221318626] [2021-11-03 21:52:57,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:52:57,711 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 21:52:57,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 21:52:57,771 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 21:52:57,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-03 21:52:58,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:52:58,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 2945 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 21:52:58,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:52:58,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:52:58,803 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 21:52:58,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 21:52:58,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174115167] [2021-11-03 21:52:58,803 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 21:52:58,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221318626] [2021-11-03 21:52:58,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221318626] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 21:52:58,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:52:58,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-03 21:52:58,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797399571] [2021-11-03 21:52:58,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 21:52:58,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 21:52:58,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 21:52:58,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 21:52:58,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 21:52:58,804 INFO L87 Difference]: Start difference. First operand 648 states and 776 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 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) [2021-11-03 21:53:00,843 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:53:08,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:53:08,434 INFO L93 Difference]: Finished difference Result 1559 states and 1854 transitions. [2021-11-03 21:53:08,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 21:53:08,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 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 97 [2021-11-03 21:53:08,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:53:08,437 INFO L225 Difference]: With dead ends: 1559 [2021-11-03 21:53:08,437 INFO L226 Difference]: Without dead ends: 957 [2021-11-03 21:53:08,438 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 218.93ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 21:53:08,438 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 253 mSDsluCounter, 1138 mSDsCounter, 0 mSdLazyCounter, 2319 mSolverCounterSat, 94 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8223.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.80ms SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 2319 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9373.75ms IncrementalHoareTripleChecker+Time [2021-11-03 21:53:08,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 0 Invalid, 2414 Unknown, 0 Unchecked, 11.80ms Time], IncrementalHoareTripleChecker [94 Valid, 2319 Invalid, 1 Unknown, 0 Unchecked, 9373.75ms Time] [2021-11-03 21:53:08,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2021-11-03 21:53:08,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 671. [2021-11-03 21:53:08,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 658 states have (on average 1.2112462006079028) internal successors, (797), 670 states have internal predecessors, (797), 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) [2021-11-03 21:53:08,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 797 transitions. [2021-11-03 21:53:08,478 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 797 transitions. Word has length 97 [2021-11-03 21:53:08,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:53:08,478 INFO L470 AbstractCegarLoop]: Abstraction has 671 states and 797 transitions. [2021-11-03 21:53:08,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 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) [2021-11-03 21:53:08,478 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 797 transitions. [2021-11-03 21:53:08,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-03 21:53:08,479 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:53:08,479 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:53:08,502 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-03 21:53:08,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 21:53:08,688 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 21:53:08,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:53:08,688 INFO L85 PathProgramCache]: Analyzing trace with hash -2078227406, now seen corresponding path program 1 times [2021-11-03 21:53:08,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 21:53:08,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577265261] [2021-11-03 21:53:08,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:53:08,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 21:53:08,735 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 21:53:08,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [475292742] [2021-11-03 21:53:08,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:53:08,735 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 21:53:08,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 21:53:08,756 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 21:53:08,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-03 21:53:09,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:53:09,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 2950 conjuncts, 104 conjunts are in the unsatisfiable core [2021-11-03 21:53:09,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:53:10,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 21:53:10,469 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 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-03 21:53:10,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 21:53:10,503 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 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-03 21:53:10,818 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 0 case distinctions, treesize of input 45 treesize of output 33 [2021-11-03 21:53:10,826 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 0 case distinctions, treesize of input 30 treesize of output 18 [2021-11-03 21:53:11,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:53:11,494 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 21:53:11,494 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 21:53:11,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577265261] [2021-11-03 21:53:11,494 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 21:53:11,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475292742] [2021-11-03 21:53:11,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475292742] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 21:53:11,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:53:11,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-03 21:53:11,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302569047] [2021-11-03 21:53:11,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 21:53:11,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-03 21:53:11,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 21:53:11,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-03 21:53:11,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-11-03 21:53:11,495 INFO L87 Difference]: Start difference. First operand 671 states and 797 transitions. Second operand has 14 states, 14 states have (on average 6.928571428571429) internal successors, (97), 14 states have internal predecessors, (97), 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) [2021-11-03 21:53:13,536 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:53:33,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:53:33,999 INFO L93 Difference]: Finished difference Result 1273 states and 1498 transitions. [2021-11-03 21:53:34,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-03 21:53:34,000 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.928571428571429) internal successors, (97), 14 states have internal predecessors, (97), 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 97 [2021-11-03 21:53:34,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:53:34,002 INFO L225 Difference]: With dead ends: 1273 [2021-11-03 21:53:34,002 INFO L226 Difference]: Without dead ends: 743 [2021-11-03 21:53:34,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 2812.64ms TimeCoverageRelationStatistics Valid=254, Invalid=802, Unknown=0, NotChecked=0, Total=1056 [2021-11-03 21:53:34,003 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1455 mSDsluCounter, 4258 mSDsCounter, 0 mSdLazyCounter, 6508 mSolverCounterSat, 117 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18265.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1455 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 6626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 52.93ms SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 6508 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20107.77ms IncrementalHoareTripleChecker+Time [2021-11-03 21:53:34,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1455 Valid, 0 Invalid, 6626 Unknown, 0 Unchecked, 52.93ms Time], IncrementalHoareTripleChecker [117 Valid, 6508 Invalid, 1 Unknown, 0 Unchecked, 20107.77ms Time] [2021-11-03 21:53:34,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2021-11-03 21:53:34,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 654. [2021-11-03 21:53:34,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 641 states have (on average 1.2121684867394695) internal successors, (777), 653 states have internal predecessors, (777), 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) [2021-11-03 21:53:34,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 777 transitions. [2021-11-03 21:53:34,041 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 777 transitions. Word has length 97 [2021-11-03 21:53:34,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:53:34,041 INFO L470 AbstractCegarLoop]: Abstraction has 654 states and 777 transitions. [2021-11-03 21:53:34,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.928571428571429) internal successors, (97), 14 states have internal predecessors, (97), 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) [2021-11-03 21:53:34,041 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 777 transitions. [2021-11-03 21:53:34,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-03 21:53:34,042 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:53:34,042 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:53:34,068 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-03 21:53:34,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-03 21:53:34,265 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 21:53:34,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:53:34,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1613581742, now seen corresponding path program 1 times [2021-11-03 21:53:34,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 21:53:34,266 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836031643] [2021-11-03 21:53:34,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:53:34,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 21:53:34,314 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 21:53:34,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [889989126] [2021-11-03 21:53:34,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:53:34,315 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 21:53:34,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 21:53:34,316 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 21:53:34,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-03 21:53:35,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:53:35,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 2959 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-03 21:53:35,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:53:35,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-03 21:53:35,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 21:53:35,475 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 0 case distinctions, treesize of input 22 treesize of output 21 [2021-11-03 21:53:35,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 21:53:35,643 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 0 case distinctions, treesize of input 26 treesize of output 14 [2021-11-03 21:53:36,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:53:36,005 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 21:53:36,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 21:53:36,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836031643] [2021-11-03 21:53:36,005 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 21:53:36,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889989126] [2021-11-03 21:53:36,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889989126] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 21:53:36,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:53:36,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-03 21:53:36,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533301301] [2021-11-03 21:53:36,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 21:53:36,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 21:53:36,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 21:53:36,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 21:53:36,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-03 21:53:36,007 INFO L87 Difference]: Start difference. First operand 654 states and 777 transitions. Second operand has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 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) [2021-11-03 21:53:38,050 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:53:40,717 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.66s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:53:43,387 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:53:46,037 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:53:48,721 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:53:51,332 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.61s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:54:04,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:54:04,667 INFO L93 Difference]: Finished difference Result 1273 states and 1506 transitions. [2021-11-03 21:54:04,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-03 21:54:04,667 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 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 98 [2021-11-03 21:54:04,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:54:04,669 INFO L225 Difference]: With dead ends: 1273 [2021-11-03 21:54:04,669 INFO L226 Difference]: Without dead ends: 695 [2021-11-03 21:54:04,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 903.01ms TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2021-11-03 21:54:04,671 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 613 mSDsluCounter, 2479 mSDsCounter, 0 mSdLazyCounter, 3890 mSolverCounterSat, 50 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22950.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 613 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.58ms SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 3890 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27918.90ms IncrementalHoareTripleChecker+Time [2021-11-03 21:54:04,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [613 Valid, 0 Invalid, 3945 Unknown, 0 Unchecked, 28.58ms Time], IncrementalHoareTripleChecker [50 Valid, 3890 Invalid, 5 Unknown, 0 Unchecked, 27918.90ms Time] [2021-11-03 21:54:04,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2021-11-03 21:54:04,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 654. [2021-11-03 21:54:04,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 641 states have (on average 1.2106084243369735) internal successors, (776), 653 states have internal predecessors, (776), 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) [2021-11-03 21:54:04,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 776 transitions. [2021-11-03 21:54:04,689 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 776 transitions. Word has length 98 [2021-11-03 21:54:04,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:54:04,689 INFO L470 AbstractCegarLoop]: Abstraction has 654 states and 776 transitions. [2021-11-03 21:54:04,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 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) [2021-11-03 21:54:04,689 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 776 transitions. [2021-11-03 21:54:04,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-03 21:54:04,690 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:54:04,690 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:54:04,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-03 21:54:04,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-03 21:54:04,903 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 21:54:04,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:54:04,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1923816844, now seen corresponding path program 1 times [2021-11-03 21:54:04,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 21:54:04,904 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633369336] [2021-11-03 21:54:04,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:54:04,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 21:54:04,957 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 21:54:04,958 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [535283479] [2021-11-03 21:54:04,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:54:04,958 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 21:54:04,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 21:54:04,972 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 21:54:04,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-03 21:54:05,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:54:05,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 2964 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-03 21:54:05,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:54:06,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 21:54:06,126 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 0 case distinctions, treesize of input 30 treesize of output 14 [2021-11-03 21:54:06,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 21:54:06,225 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 0 case distinctions, treesize of input 26 treesize of output 14 [2021-11-03 21:54:06,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 21:54:06,442 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 0 case distinctions, treesize of input 24 treesize of output 23 [2021-11-03 21:54:06,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:54:06,875 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 21:54:06,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 21:54:06,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633369336] [2021-11-03 21:54:06,875 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 21:54:06,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535283479] [2021-11-03 21:54:06,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [535283479] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 21:54:06,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:54:06,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-03 21:54:06,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755092912] [2021-11-03 21:54:06,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 21:54:06,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-03 21:54:06,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 21:54:06,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-03 21:54:06,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-03 21:54:06,876 INFO L87 Difference]: Start difference. First operand 654 states and 776 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 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) [2021-11-03 21:54:08,918 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:54:18,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:54:18,230 INFO L93 Difference]: Finished difference Result 1315 states and 1553 transitions. [2021-11-03 21:54:18,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-03 21:54:18,231 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 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 100 [2021-11-03 21:54:18,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:54:18,233 INFO L225 Difference]: With dead ends: 1315 [2021-11-03 21:54:18,233 INFO L226 Difference]: Without dead ends: 733 [2021-11-03 21:54:18,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 91 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 694.39ms TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-11-03 21:54:18,234 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 609 mSDsluCounter, 1376 mSDsCounter, 0 mSdLazyCounter, 2505 mSolverCounterSat, 33 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9336.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.92ms SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 2505 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10865.31ms IncrementalHoareTripleChecker+Time [2021-11-03 21:54:18,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [609 Valid, 0 Invalid, 2539 Unknown, 0 Unchecked, 18.92ms Time], IncrementalHoareTripleChecker [33 Valid, 2505 Invalid, 1 Unknown, 0 Unchecked, 10865.31ms Time] [2021-11-03 21:54:18,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2021-11-03 21:54:18,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 670. [2021-11-03 21:54:18,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 657 states have (on average 1.208523592085236) internal successors, (794), 669 states have internal predecessors, (794), 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) [2021-11-03 21:54:18,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 794 transitions. [2021-11-03 21:54:18,252 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 794 transitions. Word has length 100 [2021-11-03 21:54:18,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:54:18,252 INFO L470 AbstractCegarLoop]: Abstraction has 670 states and 794 transitions. [2021-11-03 21:54:18,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 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) [2021-11-03 21:54:18,252 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 794 transitions. [2021-11-03 21:54:18,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-03 21:54:18,253 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:54:18,253 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:54:18,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-03 21:54:18,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-03 21:54:18,476 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 21:54:18,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:54:18,477 INFO L85 PathProgramCache]: Analyzing trace with hash -2142621260, now seen corresponding path program 1 times [2021-11-03 21:54:18,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 21:54:18,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893134672] [2021-11-03 21:54:18,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:54:18,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 21:54:18,579 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 21:54:18,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2145423106] [2021-11-03 21:54:18,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:54:18,579 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 21:54:18,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 21:54:18,580 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 21:54:18,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-03 21:54:19,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:54:19,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 2964 conjuncts, 121 conjunts are in the unsatisfiable core [2021-11-03 21:54:19,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:54:21,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 21:54:21,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 21:54:21,175 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 21:54:21,176 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 21:54:21,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 26 [2021-11-03 21:54:21,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 21:54:21,505 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 21:54:21,508 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-03 21:54:21,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 38 treesize of output 36 [2021-11-03 21:54:25,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 21:54:25,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893134672] [2021-11-03 21:54:25,798 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 21:54:25,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145423106] [2021-11-03 21:54:25,798 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [ULTIMATE.start_aws_array_list_is_valid_~list.base] [2021-11-03 21:54:25,798 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:54:25,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-03 21:54:25,798 ERROR L172 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2021-11-03 21:54:25,798 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-03 21:54:25,802 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 13 remaining) [2021-11-03 21:54:25,804 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (11 of 13 remaining) [2021-11-03 21:54:25,804 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (10 of 13 remaining) [2021-11-03 21:54:25,804 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (9 of 13 remaining) [2021-11-03 21:54:25,804 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (8 of 13 remaining) [2021-11-03 21:54:25,804 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (7 of 13 remaining) [2021-11-03 21:54:25,804 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (6 of 13 remaining) [2021-11-03 21:54:25,805 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (5 of 13 remaining) [2021-11-03 21:54:25,805 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (4 of 13 remaining) [2021-11-03 21:54:25,805 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (3 of 13 remaining) [2021-11-03 21:54:25,805 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (2 of 13 remaining) [2021-11-03 21:54:25,805 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (1 of 13 remaining) [2021-11-03 21:54:25,805 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (0 of 13 remaining) [2021-11-03 21:54:25,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-03 21:54:26,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-03 21:54:26,022 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:54:26,024 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 21:54:26,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 09:54:26 BoogieIcfgContainer [2021-11-03 21:54:26,047 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 21:54:26,047 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 21:54:26,048 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 21:54:26,048 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 21:54:26,048 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 09:50:53" (3/4) ... [2021-11-03 21:54:26,050 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-03 21:54:26,050 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 21:54:26,051 INFO L158 Benchmark]: Toolchain (without parser) took 219234.73ms. Allocated memory was 115.3MB in the beginning and 522.2MB in the end (delta: 406.8MB). Free memory was 79.9MB in the beginning and 292.5MB in the end (delta: -212.6MB). Peak memory consumption was 192.7MB. Max. memory is 16.1GB. [2021-11-03 21:54:26,051 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 115.3MB. Free memory is still 72.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-03 21:54:26,051 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1981.81ms. Allocated memory was 115.3MB in the beginning and 140.5MB in the end (delta: 25.2MB). Free memory was 79.8MB in the beginning and 53.8MB in the end (delta: 26.0MB). Peak memory consumption was 49.7MB. Max. memory is 16.1GB. [2021-11-03 21:54:26,051 INFO L158 Benchmark]: Boogie Procedure Inliner took 189.38ms. Allocated memory is still 140.5MB. Free memory was 53.8MB in the beginning and 80.2MB in the end (delta: -26.4MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2021-11-03 21:54:26,052 INFO L158 Benchmark]: Boogie Preprocessor took 108.94ms. Allocated memory is still 140.5MB. Free memory was 80.2MB in the beginning and 68.3MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-03 21:54:26,052 INFO L158 Benchmark]: RCFGBuilder took 4291.51ms. Allocated memory was 140.5MB in the beginning and 432.0MB in the end (delta: 291.5MB). Free memory was 68.3MB in the beginning and 166.4MB in the end (delta: -98.1MB). Peak memory consumption was 245.7MB. Max. memory is 16.1GB. [2021-11-03 21:54:26,052 INFO L158 Benchmark]: TraceAbstraction took 212653.54ms. Allocated memory was 432.0MB in the beginning and 522.2MB in the end (delta: 90.2MB). Free memory was 166.4MB in the beginning and 293.5MB in the end (delta: -127.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-03 21:54:26,052 INFO L158 Benchmark]: Witness Printer took 2.91ms. Allocated memory is still 522.2MB. Free memory was 293.5MB in the beginning and 292.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-03 21:54:26,053 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 115.3MB. Free memory is still 72.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1981.81ms. Allocated memory was 115.3MB in the beginning and 140.5MB in the end (delta: 25.2MB). Free memory was 79.8MB in the beginning and 53.8MB in the end (delta: 26.0MB). Peak memory consumption was 49.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 189.38ms. Allocated memory is still 140.5MB. Free memory was 53.8MB in the beginning and 80.2MB in the end (delta: -26.4MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 108.94ms. Allocated memory is still 140.5MB. Free memory was 80.2MB in the beginning and 68.3MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 4291.51ms. Allocated memory was 140.5MB in the beginning and 432.0MB in the end (delta: 291.5MB). Free memory was 68.3MB in the beginning and 166.4MB in the end (delta: -98.1MB). Peak memory consumption was 245.7MB. Max. memory is 16.1GB. * TraceAbstraction took 212653.54ms. Allocated memory was 432.0MB in the beginning and 522.2MB in the end (delta: 90.2MB). Free memory was 166.4MB in the beginning and 293.5MB in the end (delta: -127.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.91ms. Allocated memory is still 522.2MB. Free memory was 293.5MB in the beginning and 292.5MB in the end (delta: 1.0MB). 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 7792. 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; [L7791-L7939] 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", } , }; [L7942-L7945] static struct aws_error_info_list s_list = { .error_list = errors, .count = (sizeof(errors) / sizeof((errors)[0])), }; [L7947-L7956] 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.") } , }; [L7958-L7961] 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])), }; [L7963-L7967] static _Bool s_common_library_initialized = 0 ; [L7981] struct aws_array_list from; [L7982] struct aws_array_list to; [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] COND FALSE !(list->current_size == 0 && list->length == 0) [L7019] EXPR list->current_size [L211] COND FALSE !(!cond) [L2782] return malloc(size); [L7019] list->data = bounded_malloc(list->current_size) [L261] return __VERIFIER_nondet_bool(); [L7020-L7022] EXPR nondet_bool() ? ((void *)0) : can_fail_allocator() [L7020-L7022] list->alloc = nondet_bool() ? ((void *)0) : 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-L3281] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L3281] EXPR list->current_size [L3281] EXPR (((list->current_size)) == 0) || ((list->data)) [L3281] EXPR list->data [L3281] EXPR (((list->current_size)) == 0) || ((list->data)) [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) [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) [L7993] from.item_size [L7993] to.item_size [L211] COND FALSE !(!cond) [L7994] from.data [L211] COND FALSE !(!cond) [L7467] from->item_size [L7467] to->item_size [L211] COND FALSE !(!cond) [L7468] from->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) [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) [L7472] size_t copy_size; [L7473] EXPR from->length [L7473] EXPR from->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2496] COND TRUE __CPROVER_overflow_mult(a, b) [L7366] tl_last_error = err [L1998] return (-1); [L2497] return aws_raise_error(AWS_ERROR_OVERFLOW_DETECTED); [L2588] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L7473] COND TRUE aws_mul_size_checked(from->length, from->item_size, ©_size) [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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 369 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 212581.59ms, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 30.86ms, AutomataDifference: 179527.42ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 13.76ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 19 mSolverCounterUnknown, 10121 SdHoareTripleChecker+Valid, 171228.71ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10121 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 148625.36ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 935 IncrementalHoareTripleChecker+Unchecked, 19872 mSDsCounter, 563 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33366 IncrementalHoareTripleChecker+Invalid, 34883 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 563 mSolverCounterUnsat, 0 mSDtfsCounter, 33366 mSolverCounterSat, 279.07ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1132 GetRequests, 976 SyntacticMatches, 1 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 566 ImplicationChecksByTransitivity, 10133.78ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=671occurred in iteration=12, InterpolantAutomatonStates: 140, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 285.88ms AutomataMinimizationTime, 15 MinimizatonAttempts, 1342 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1466.21ms SsaConstructionTime, 7658.02ms SatisfiabilityAnalysisTime, 18708.73ms InterpolantComputationTime, 1317 NumberOfCodeBlocks, 1317 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1202 ConstructedInterpolants, 9 QuantifiedInterpolants, 4363 SizeOfPredicates, 184 NumberOfNonLiveVariables, 37223 ConjunctsInSsa, 552 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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 [2021-11-03 21:54:26,275 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-03 21:54:26,310 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 137 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_copy_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 3a98a47bac7562a35bba31573ebdfd704a9d27baca1b439deea796ac12a0961b --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-03 21:54:27,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 21:54:27,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 21:54:27,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 21:54:27,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 21:54:27,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 21:54:27,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 21:54:27,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 21:54:27,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 21:54:27,983 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 21:54:27,984 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 21:54:27,992 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 21:54:27,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 21:54:27,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 21:54:27,995 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 21:54:27,996 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 21:54:27,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 21:54:27,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 21:54:27,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 21:54:27,999 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 21:54:27,999 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 21:54:28,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 21:54:28,006 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 21:54:28,007 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 21:54:28,011 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 21:54:28,011 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 21:54:28,011 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 21:54:28,011 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 21:54:28,012 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 21:54:28,012 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 21:54:28,012 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 21:54:28,013 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 21:54:28,013 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 21:54:28,013 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 21:54:28,014 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 21:54:28,014 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 21:54:28,014 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 21:54:28,015 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 21:54:28,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 21:54:28,015 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 21:54:28,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 21:54:28,019 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-03 21:54:28,045 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 21:54:28,045 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 21:54:28,046 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-03 21:54:28,046 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-03 21:54:28,048 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 21:54:28,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 21:54:28,048 INFO L138 SettingsManager]: * Use SBE=true [2021-11-03 21:54:28,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 21:54:28,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 21:54:28,048 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 21:54:28,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 21:54:28,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 21:54:28,049 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 21:54:28,049 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 21:54:28,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 21:54:28,049 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 21:54:28,049 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 21:54:28,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 21:54:28,049 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 21:54:28,050 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 21:54:28,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 21:54:28,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 21:54:28,050 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 21:54:28,050 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 21:54:28,050 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-03 21:54:28,050 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 21:54:28,050 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-03 21:54:28,050 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-03 21:54:28,050 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 21:54:28,050 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 21:54:28,050 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 21:54:28,051 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a98a47bac7562a35bba31573ebdfd704a9d27baca1b439deea796ac12a0961b [2021-11-03 21:54:28,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 21:54:28,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 21:54:28,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 21:54:28,332 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 21:54:28,332 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 21:54:28,333 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness.i [2021-11-03 21:54:28,378 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/416763d88/0d0cafbff40d4a00993e87680b8c9989/FLAGf8464d15f [2021-11-03 21:54:28,986 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 21:54:28,986 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness.i [2021-11-03 21:54:29,014 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/416763d88/0d0cafbff40d4a00993e87680b8c9989/FLAGf8464d15f [2021-11-03 21:54:29,359 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/416763d88/0d0cafbff40d4a00993e87680b8c9989 [2021-11-03 21:54:29,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 21:54:29,362 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 21:54:29,364 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 21:54:29,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 21:54:29,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 21:54:29,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 09:54:29" (1/1) ... [2021-11-03 21:54:29,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@236ff40d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:54:29, skipping insertion in model container [2021-11-03 21:54:29,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 09:54:29" (1/1) ... [2021-11-03 21:54:29,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 21:54:29,442 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 21:54:29,678 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_copy_harness.i[4493,4506] [2021-11-03 21:54:29,682 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_copy_harness.i[4553,4566] [2021-11-03 21:54:29,692 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 21:54:29,694 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 21:54:30,063 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 21:54:30,119 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,120 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,120 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,122 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,123 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,139 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,140 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,141 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,142 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,143 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,144 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,144 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,146 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,355 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 21:54:30,357 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 21:54:30,357 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 21:54:30,360 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 21:54:30,361 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 21:54:30,361 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 21:54:30,362 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 21:54:30,362 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 21:54:30,363 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 21:54:30,364 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 21:54:30,460 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,461 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,464 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,471 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 21:54:30,536 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 21:54:30,551 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_copy_harness.i[4493,4506] [2021-11-03 21:54:30,552 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_copy_harness.i[4553,4566] [2021-11-03 21:54:30,553 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 21:54:30,553 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 21:54:30,589 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 21:54:30,605 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,605 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,605 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,605 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,606 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,610 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,611 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,611 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,611 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,612 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,612 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,612 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,613 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,634 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 21:54:30,635 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 21:54:30,635 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 21:54:30,636 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 21:54:30,636 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 21:54:30,636 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 21:54:30,637 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 21:54:30,637 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 21:54:30,637 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 21:54:30,637 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 21:54:30,670 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,670 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,671 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,673 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 21:54:30,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 21:54:30,909 INFO L208 MainTranslator]: Completed translation [2021-11-03 21:54:30,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:54:30 WrapperNode [2021-11-03 21:54:30,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 21:54:30,910 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 21:54:30,910 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 21:54:30,910 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 21:54:30,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:54:30" (1/1) ... [2021-11-03 21:54:31,015 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:54:30" (1/1) ... [2021-11-03 21:54:31,089 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 21:54:31,090 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 21:54:31,090 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 21:54:31,090 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 21:54:31,096 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:54:30" (1/1) ... [2021-11-03 21:54:31,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:54:30" (1/1) ... [2021-11-03 21:54:31,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:54:30" (1/1) ... [2021-11-03 21:54:31,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:54:30" (1/1) ... [2021-11-03 21:54:31,178 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:54:30" (1/1) ... [2021-11-03 21:54:31,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:54:30" (1/1) ... [2021-11-03 21:54:31,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:54:30" (1/1) ... [2021-11-03 21:54:31,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 21:54:31,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 21:54:31,250 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 21:54:31,250 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 21:54:31,250 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:54:30" (1/1) ... [2021-11-03 21:54:31,256 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 21:54:31,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 21:54:31,285 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) [2021-11-03 21:54:31,310 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 [2021-11-03 21:54:31,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 21:54:31,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 21:54:31,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 21:54:31,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 21:54:31,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 21:54:31,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 21:54:31,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 21:54:31,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 21:54:31,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 21:54:31,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 21:54:31,328 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 21:54:31,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 21:54:31,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 21:54:31,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 21:54:31,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 21:54:37,259 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 21:54:37,259 INFO L299 CfgBuilder]: Removed 324 assume(true) statements. [2021-11-03 21:54:37,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 09:54:37 BoogieIcfgContainer [2021-11-03 21:54:37,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 21:54:37,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 21:54:37,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 21:54:37,264 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 21:54:37,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 09:54:29" (1/3) ... [2021-11-03 21:54:37,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57bfd7f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 09:54:37, skipping insertion in model container [2021-11-03 21:54:37,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 09:54:30" (2/3) ... [2021-11-03 21:54:37,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57bfd7f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 09:54:37, skipping insertion in model container [2021-11-03 21:54:37,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 09:54:37" (3/3) ... [2021-11-03 21:54:37,266 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_copy_harness.i [2021-11-03 21:54:37,270 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 21:54:37,270 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-11-03 21:54:37,299 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 21:54:37,303 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 [2021-11-03 21:54:37,303 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-11-03 21:54:37,315 INFO L276 IsEmpty]: Start isEmpty. Operand has 369 states, 355 states have (on average 1.4) internal successors, (497), 368 states have internal predecessors, (497), 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) [2021-11-03 21:54:37,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-03 21:54:37,320 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:54:37,321 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] [2021-11-03 21:54:37,321 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 21:54:37,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:54:37,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1546678732, now seen corresponding path program 1 times [2021-11-03 21:54:37,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-03 21:54:37,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1792806295] [2021-11-03 21:54:37,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:54:37,337 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 21:54:37,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-03 21:54:37,339 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) [2021-11-03 21:54:37,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 21:54:39,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:54:39,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 1446 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 21:54:39,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:54:39,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:54:39,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 21:54:39,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:54:39,740 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-03 21:54:39,740 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1792806295] [2021-11-03 21:54:39,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1792806295] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 21:54:39,741 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:54:39,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 21:54:39,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154910811] [2021-11-03 21:54:39,743 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-03 21:54:39,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 21:54:39,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-03 21:54:39,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 21:54:39,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 21:54:39,763 INFO L87 Difference]: Start difference. First operand has 369 states, 355 states have (on average 1.4) internal successors, (497), 368 states have internal predecessors, (497), 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 26.5) internal successors, (53), 2 states have internal predecessors, (53), 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) [2021-11-03 21:54:41,975 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:54:44,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:54:44,963 INFO L93 Difference]: Finished difference Result 734 states and 989 transitions. [2021-11-03 21:54:44,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 21:54:44,967 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 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 53 [2021-11-03 21:54:44,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:54:44,982 INFO L225 Difference]: With dead ends: 734 [2021-11-03 21:54:44,982 INFO L226 Difference]: Without dead ends: 364 [2021-11-03 21:54:44,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.24ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 21:54:44,994 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4637.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.88ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5110.31ms IncrementalHoareTripleChecker+Time [2021-11-03 21:54:44,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 457 Unknown, 0 Unchecked, 5.88ms Time], IncrementalHoareTripleChecker [0 Valid, 456 Invalid, 1 Unknown, 0 Unchecked, 5110.31ms Time] [2021-11-03 21:54:45,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2021-11-03 21:54:45,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2021-11-03 21:54:45,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 351 states have (on average 1.2877492877492878) internal successors, (452), 363 states have internal predecessors, (452), 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) [2021-11-03 21:54:45,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 452 transitions. [2021-11-03 21:54:45,064 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 452 transitions. Word has length 53 [2021-11-03 21:54:45,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:54:45,064 INFO L470 AbstractCegarLoop]: Abstraction has 364 states and 452 transitions. [2021-11-03 21:54:45,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 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) [2021-11-03 21:54:45,064 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 452 transitions. [2021-11-03 21:54:45,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-03 21:54:45,069 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:54:45,070 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] [2021-11-03 21:54:45,113 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 21:54:45,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-03 21:54:45,276 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 21:54:45,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:54:45,277 INFO L85 PathProgramCache]: Analyzing trace with hash 481957526, now seen corresponding path program 1 times [2021-11-03 21:54:45,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-03 21:54:45,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [434310271] [2021-11-03 21:54:45,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:54:45,281 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 21:54:45,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-03 21:54:45,283 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) [2021-11-03 21:54:45,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 21:54:47,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:54:47,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 1446 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 21:54:47,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:54:47,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:54:47,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 21:54:47,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:54:47,701 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-03 21:54:47,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [434310271] [2021-11-03 21:54:47,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [434310271] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 21:54:47,701 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:54:47,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 21:54:47,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082764446] [2021-11-03 21:54:47,702 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-03 21:54:47,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 21:54:47,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-03 21:54:47,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 21:54:47,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 21:54:47,704 INFO L87 Difference]: Start difference. First operand 364 states and 452 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2021-11-03 21:54:49,867 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:54:54,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:54:54,676 INFO L93 Difference]: Finished difference Result 716 states and 891 transitions. [2021-11-03 21:54:54,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 21:54:54,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 53 [2021-11-03 21:54:54,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:54:54,691 INFO L225 Difference]: With dead ends: 716 [2021-11-03 21:54:54,691 INFO L226 Difference]: Without dead ends: 366 [2021-11-03 21:54:54,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.28ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 21:54:54,696 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6318.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.23ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6890.72ms IncrementalHoareTripleChecker+Time [2021-11-03 21:54:54,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 905 Unknown, 0 Unchecked, 20.23ms Time], IncrementalHoareTripleChecker [2 Valid, 902 Invalid, 1 Unknown, 0 Unchecked, 6890.72ms Time] [2021-11-03 21:54:54,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-11-03 21:54:54,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2021-11-03 21:54:54,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 353 states have (on average 1.2861189801699717) internal successors, (454), 365 states have internal predecessors, (454), 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) [2021-11-03 21:54:54,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 454 transitions. [2021-11-03 21:54:54,722 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 454 transitions. Word has length 53 [2021-11-03 21:54:54,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:54:54,722 INFO L470 AbstractCegarLoop]: Abstraction has 366 states and 454 transitions. [2021-11-03 21:54:54,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2021-11-03 21:54:54,723 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 454 transitions. [2021-11-03 21:54:54,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-03 21:54:54,727 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:54:54,727 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] [2021-11-03 21:54:54,766 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 21:54:54,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-03 21:54:54,941 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 21:54:54,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:54:54,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1457204520, now seen corresponding path program 1 times [2021-11-03 21:54:54,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-03 21:54:54,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [654607105] [2021-11-03 21:54:54,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:54:54,945 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 21:54:54,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-03 21:54:54,946 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) [2021-11-03 21:54:54,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 21:54:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:54:57,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 1448 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-03 21:54:57,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:54:57,628 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 21:54:57,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 23 [2021-11-03 21:54:57,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:54:57,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 21:54:58,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:54:58,309 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-03 21:54:58,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [654607105] [2021-11-03 21:54:58,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [654607105] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 21:54:58,310 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:54:58,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-11-03 21:54:58,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269451262] [2021-11-03 21:54:58,310 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-03 21:54:58,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 21:54:58,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-03 21:54:58,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 21:54:58,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-03 21:54:58,312 INFO L87 Difference]: Start difference. First operand 366 states and 454 transitions. Second operand has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 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) [2021-11-03 21:55:00,488 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:55:16,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:55:16,028 INFO L93 Difference]: Finished difference Result 737 states and 915 transitions. [2021-11-03 21:55:16,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 21:55:16,029 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 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 53 [2021-11-03 21:55:16,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:55:16,031 INFO L225 Difference]: With dead ends: 737 [2021-11-03 21:55:16,031 INFO L226 Difference]: Without dead ends: 386 [2021-11-03 21:55:16,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1403.53ms TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2021-11-03 21:55:16,032 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 218 mSDsluCounter, 2040 mSDsCounter, 0 mSdLazyCounter, 3056 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15121.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 33.42ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 3056 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16740.76ms IncrementalHoareTripleChecker+Time [2021-11-03 21:55:16,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 0 Invalid, 3097 Unknown, 0 Unchecked, 33.42ms Time], IncrementalHoareTripleChecker [40 Valid, 3056 Invalid, 1 Unknown, 0 Unchecked, 16740.76ms Time] [2021-11-03 21:55:16,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2021-11-03 21:55:16,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 362. [2021-11-03 21:55:16,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 349 states have (on average 1.2865329512893984) internal successors, (449), 361 states have internal predecessors, (449), 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) [2021-11-03 21:55:16,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 449 transitions. [2021-11-03 21:55:16,038 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 449 transitions. Word has length 53 [2021-11-03 21:55:16,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:55:16,039 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 449 transitions. [2021-11-03 21:55:16,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 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) [2021-11-03 21:55:16,039 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 449 transitions. [2021-11-03 21:55:16,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-03 21:55:16,039 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:55:16,040 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] [2021-11-03 21:55:16,080 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-03 21:55:16,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-03 21:55:16,240 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 21:55:16,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:55:16,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1879355310, now seen corresponding path program 1 times [2021-11-03 21:55:16,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-03 21:55:16,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575340934] [2021-11-03 21:55:16,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:55:16,244 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 21:55:16,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-03 21:55:16,245 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) [2021-11-03 21:55:16,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 21:55:18,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:55:18,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 1458 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 21:55:18,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:55:18,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:55:18,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 21:55:18,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:55:18,881 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-03 21:55:18,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1575340934] [2021-11-03 21:55:18,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1575340934] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 21:55:18,882 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:55:18,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 21:55:18,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079570963] [2021-11-03 21:55:18,882 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-03 21:55:18,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 21:55:18,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-03 21:55:18,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 21:55:18,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 21:55:18,883 INFO L87 Difference]: Start difference. First operand 362 states and 449 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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) [2021-11-03 21:55:21,060 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:55:25,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:55:25,841 INFO L93 Difference]: Finished difference Result 696 states and 863 transitions. [2021-11-03 21:55:25,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 21:55:25,842 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 56 [2021-11-03 21:55:25,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:55:25,843 INFO L225 Difference]: With dead ends: 696 [2021-11-03 21:55:25,843 INFO L226 Difference]: Without dead ends: 362 [2021-11-03 21:55:25,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 49.33ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 21:55:25,844 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 492 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6328.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.80ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6873.96ms IncrementalHoareTripleChecker+Time [2021-11-03 21:55:25,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [492 Valid, 0 Invalid, 832 Unknown, 0 Unchecked, 9.80ms Time], IncrementalHoareTripleChecker [2 Valid, 829 Invalid, 1 Unknown, 0 Unchecked, 6873.96ms Time] [2021-11-03 21:55:25,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2021-11-03 21:55:25,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2021-11-03 21:55:25,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 349 states have (on average 1.2808022922636104) internal successors, (447), 361 states have internal predecessors, (447), 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) [2021-11-03 21:55:25,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 447 transitions. [2021-11-03 21:55:25,862 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 447 transitions. Word has length 56 [2021-11-03 21:55:25,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:55:25,862 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 447 transitions. [2021-11-03 21:55:25,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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) [2021-11-03 21:55:25,863 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 447 transitions. [2021-11-03 21:55:25,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-03 21:55:25,864 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:55:25,865 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] [2021-11-03 21:55:25,902 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 21:55:26,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-03 21:55:26,079 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 21:55:26,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:55:26,080 INFO L85 PathProgramCache]: Analyzing trace with hash -455018350, now seen corresponding path program 1 times [2021-11-03 21:55:26,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-03 21:55:26,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [922504448] [2021-11-03 21:55:26,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:55:26,082 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 21:55:26,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-03 21:55:26,083 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) [2021-11-03 21:55:26,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 21:55:28,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:55:28,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 1511 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-03 21:55:28,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:55:29,028 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 21:55:29,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 23 [2021-11-03 21:55:29,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:55:29,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 21:55:29,713 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-03 21:55:29,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 1 [2021-11-03 21:55:29,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:55:29,738 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-03 21:55:29,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [922504448] [2021-11-03 21:55:29,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [922504448] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 21:55:29,739 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:55:29,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 12 [2021-11-03 21:55:29,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760235506] [2021-11-03 21:55:29,740 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-03 21:55:29,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 21:55:29,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-03 21:55:29,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 21:55:29,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-11-03 21:55:29,741 INFO L87 Difference]: Start difference. First operand 362 states and 447 transitions. Second operand has 12 states, 12 states have (on average 7.75) internal successors, (93), 12 states have internal predecessors, (93), 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) [2021-11-03 21:55:31,933 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:56:02,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:56:02,258 INFO L93 Difference]: Finished difference Result 966 states and 1190 transitions. [2021-11-03 21:56:02,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 21:56:02,259 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.75) internal successors, (93), 12 states have internal predecessors, (93), 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 64 [2021-11-03 21:56:02,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:56:02,261 INFO L225 Difference]: With dead ends: 966 [2021-11-03 21:56:02,261 INFO L226 Difference]: Without dead ends: 648 [2021-11-03 21:56:02,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1410.41ms TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2021-11-03 21:56:02,263 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1514 mSDsluCounter, 3274 mSDsCounter, 0 mSdLazyCounter, 5103 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28979.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 48.16ms SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 5103 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31441.25ms IncrementalHoareTripleChecker+Time [2021-11-03 21:56:02,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1514 Valid, 0 Invalid, 5148 Unknown, 0 Unchecked, 48.16ms Time], IncrementalHoareTripleChecker [44 Valid, 5103 Invalid, 1 Unknown, 0 Unchecked, 31441.25ms Time] [2021-11-03 21:56:02,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2021-11-03 21:56:02,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 358. [2021-11-03 21:56:02,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 345 states have (on average 1.281159420289855) internal successors, (442), 357 states have internal predecessors, (442), 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) [2021-11-03 21:56:02,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 442 transitions. [2021-11-03 21:56:02,278 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 442 transitions. Word has length 64 [2021-11-03 21:56:02,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:56:02,278 INFO L470 AbstractCegarLoop]: Abstraction has 358 states and 442 transitions. [2021-11-03 21:56:02,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.75) internal successors, (93), 12 states have internal predecessors, (93), 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) [2021-11-03 21:56:02,279 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 442 transitions. [2021-11-03 21:56:02,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-03 21:56:02,279 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:56:02,279 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, 1, 1] [2021-11-03 21:56:02,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 21:56:02,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-03 21:56:02,503 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 21:56:02,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:56:02,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1204497925, now seen corresponding path program 1 times [2021-11-03 21:56:02,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-03 21:56:02,506 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [995256516] [2021-11-03 21:56:02,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:56:02,507 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 21:56:02,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-03 21:56:02,510 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) [2021-11-03 21:56:02,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 21:56:04,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:56:04,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 1523 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 21:56:04,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:56:05,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:56:05,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 21:56:05,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:56:05,452 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-03 21:56:05,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [995256516] [2021-11-03 21:56:05,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [995256516] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 21:56:05,453 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:56:05,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 21:56:05,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549593229] [2021-11-03 21:56:05,453 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-03 21:56:05,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 21:56:05,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-03 21:56:05,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 21:56:05,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 21:56:05,454 INFO L87 Difference]: Start difference. First operand 358 states and 442 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2021-11-03 21:56:07,628 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:56:11,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:56:11,991 INFO L93 Difference]: Finished difference Result 659 states and 814 transitions. [2021-11-03 21:56:11,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 21:56:11,991 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 67 [2021-11-03 21:56:11,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:56:11,993 INFO L225 Difference]: With dead ends: 659 [2021-11-03 21:56:11,993 INFO L226 Difference]: Without dead ends: 358 [2021-11-03 21:56:11,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 42.65ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 21:56:11,993 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 454 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5944.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.02ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6454.34ms IncrementalHoareTripleChecker+Time [2021-11-03 21:56:11,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [454 Valid, 0 Invalid, 828 Unknown, 0 Unchecked, 5.02ms Time], IncrementalHoareTripleChecker [2 Valid, 825 Invalid, 1 Unknown, 0 Unchecked, 6454.34ms Time] [2021-11-03 21:56:11,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2021-11-03 21:56:12,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2021-11-03 21:56:12,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 345 states have (on average 1.2753623188405796) internal successors, (440), 357 states have internal predecessors, (440), 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) [2021-11-03 21:56:12,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 440 transitions. [2021-11-03 21:56:12,006 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 440 transitions. Word has length 67 [2021-11-03 21:56:12,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:56:12,006 INFO L470 AbstractCegarLoop]: Abstraction has 358 states and 440 transitions. [2021-11-03 21:56:12,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2021-11-03 21:56:12,006 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 440 transitions. [2021-11-03 21:56:12,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-03 21:56:12,007 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:56:12,007 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:56:12,042 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 21:56:12,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-03 21:56:12,236 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 21:56:12,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:56:12,236 INFO L85 PathProgramCache]: Analyzing trace with hash -120293865, now seen corresponding path program 1 times [2021-11-03 21:56:12,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-03 21:56:12,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1690548229] [2021-11-03 21:56:12,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:56:12,239 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 21:56:12,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-03 21:56:12,240 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 21:56:12,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 21:56:14,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:56:14,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 1576 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 21:56:14,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:56:15,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:56:15,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 21:56:15,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:56:15,678 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-03 21:56:15,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1690548229] [2021-11-03 21:56:15,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1690548229] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 21:56:15,678 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:56:15,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 21:56:15,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362002006] [2021-11-03 21:56:15,678 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-03 21:56:15,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 21:56:15,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-03 21:56:15,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 21:56:15,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 21:56:15,679 INFO L87 Difference]: Start difference. First operand 358 states and 440 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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) [2021-11-03 21:56:17,861 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:56:21,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:56:21,801 INFO L93 Difference]: Finished difference Result 635 states and 782 transitions. [2021-11-03 21:56:21,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 21:56:21,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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 75 [2021-11-03 21:56:21,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:56:21,803 INFO L225 Difference]: With dead ends: 635 [2021-11-03 21:56:21,803 INFO L226 Difference]: Without dead ends: 358 [2021-11-03 21:56:21,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 130.06ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 21:56:21,804 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 896 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5463.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.75ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5987.26ms IncrementalHoareTripleChecker+Time [2021-11-03 21:56:21,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [896 Valid, 0 Invalid, 788 Unknown, 0 Unchecked, 7.75ms Time], IncrementalHoareTripleChecker [10 Valid, 777 Invalid, 1 Unknown, 0 Unchecked, 5987.26ms Time] [2021-11-03 21:56:21,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2021-11-03 21:56:21,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2021-11-03 21:56:21,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 345 states have (on average 1.2608695652173914) internal successors, (435), 357 states have internal predecessors, (435), 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) [2021-11-03 21:56:21,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 435 transitions. [2021-11-03 21:56:21,830 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 435 transitions. Word has length 75 [2021-11-03 21:56:21,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:56:21,830 INFO L470 AbstractCegarLoop]: Abstraction has 358 states and 435 transitions. [2021-11-03 21:56:21,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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) [2021-11-03 21:56:21,831 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 435 transitions. [2021-11-03 21:56:21,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-03 21:56:21,831 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:56:21,831 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:56:21,870 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 21:56:22,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-03 21:56:22,059 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 21:56:22,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:56:22,060 INFO L85 PathProgramCache]: Analyzing trace with hash -41305015, now seen corresponding path program 1 times [2021-11-03 21:56:22,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-03 21:56:22,063 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1181081594] [2021-11-03 21:56:22,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:56:22,063 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 21:56:22,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-03 21:56:22,065 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 21:56:22,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 21:56:24,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:56:24,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 1637 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 21:56:24,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:56:24,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:56:24,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 21:56:24,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:56:24,967 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-03 21:56:24,967 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1181081594] [2021-11-03 21:56:24,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1181081594] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 21:56:24,967 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:56:24,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 21:56:24,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12758553] [2021-11-03 21:56:24,967 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-03 21:56:24,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 21:56:24,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-03 21:56:24,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 21:56:24,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 21:56:24,968 INFO L87 Difference]: Start difference. First operand 358 states and 435 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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) [2021-11-03 21:56:27,150 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:56:33,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:56:33,491 INFO L93 Difference]: Finished difference Result 759 states and 935 transitions. [2021-11-03 21:56:33,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 21:56:33,492 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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 87 [2021-11-03 21:56:33,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:56:33,493 INFO L225 Difference]: With dead ends: 759 [2021-11-03 21:56:33,494 INFO L226 Difference]: Without dead ends: 428 [2021-11-03 21:56:33,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 44.31ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 21:56:33,495 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 104 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7782.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.51ms SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8425.58ms IncrementalHoareTripleChecker+Time [2021-11-03 21:56:33,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 0 Invalid, 1414 Unknown, 0 Unchecked, 10.51ms Time], IncrementalHoareTripleChecker [53 Valid, 1360 Invalid, 1 Unknown, 0 Unchecked, 8425.58ms Time] [2021-11-03 21:56:33,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2021-11-03 21:56:33,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 386. [2021-11-03 21:56:33,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 373 states have (on average 1.2412868632707774) internal successors, (463), 385 states have internal predecessors, (463), 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) [2021-11-03 21:56:33,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 463 transitions. [2021-11-03 21:56:33,507 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 463 transitions. Word has length 87 [2021-11-03 21:56:33,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:56:33,507 INFO L470 AbstractCegarLoop]: Abstraction has 386 states and 463 transitions. [2021-11-03 21:56:33,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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) [2021-11-03 21:56:33,507 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 463 transitions. [2021-11-03 21:56:33,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-03 21:56:33,507 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:56:33,508 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:56:33,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 21:56:33,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-03 21:56:33,708 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 21:56:33,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:56:33,709 INFO L85 PathProgramCache]: Analyzing trace with hash 92708491, now seen corresponding path program 1 times [2021-11-03 21:56:33,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-03 21:56:33,713 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [607224510] [2021-11-03 21:56:33,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:56:33,714 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 21:56:33,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-03 21:56:33,715 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 21:56:33,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 21:56:36,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:56:36,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 1640 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 21:56:36,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:56:36,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:56:36,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 21:56:37,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:56:37,407 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-03 21:56:37,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [607224510] [2021-11-03 21:56:37,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [607224510] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 21:56:37,408 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:56:37,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 21:56:37,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469025353] [2021-11-03 21:56:37,408 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-03 21:56:37,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 21:56:37,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-03 21:56:37,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 21:56:37,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 21:56:37,410 INFO L87 Difference]: Start difference. First operand 386 states and 463 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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) [2021-11-03 21:56:39,600 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:56:43,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:56:43,763 INFO L93 Difference]: Finished difference Result 667 states and 800 transitions. [2021-11-03 21:56:43,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 21:56:43,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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 87 [2021-11-03 21:56:43,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:56:43,765 INFO L225 Difference]: With dead ends: 667 [2021-11-03 21:56:43,765 INFO L226 Difference]: Without dead ends: 386 [2021-11-03 21:56:43,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 114.31ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 21:56:43,766 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 954 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5700.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.91ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6221.06ms IncrementalHoareTripleChecker+Time [2021-11-03 21:56:43,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [954 Valid, 0 Invalid, 698 Unknown, 0 Unchecked, 13.91ms Time], IncrementalHoareTripleChecker [14 Valid, 683 Invalid, 1 Unknown, 0 Unchecked, 6221.06ms Time] [2021-11-03 21:56:43,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2021-11-03 21:56:43,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2021-11-03 21:56:43,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 373 states have (on average 1.227882037533512) internal successors, (458), 385 states have internal predecessors, (458), 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) [2021-11-03 21:56:43,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 458 transitions. [2021-11-03 21:56:43,776 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 458 transitions. Word has length 87 [2021-11-03 21:56:43,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:56:43,777 INFO L470 AbstractCegarLoop]: Abstraction has 386 states and 458 transitions. [2021-11-03 21:56:43,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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) [2021-11-03 21:56:43,777 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 458 transitions. [2021-11-03 21:56:43,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-03 21:56:43,777 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:56:43,777 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:56:43,833 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-11-03 21:56:43,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-03 21:56:43,978 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 21:56:43,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:56:43,979 INFO L85 PathProgramCache]: Analyzing trace with hash -871288665, now seen corresponding path program 1 times [2021-11-03 21:56:43,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-03 21:56:43,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1792307616] [2021-11-03 21:56:43,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:56:43,981 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 21:56:43,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-03 21:56:43,983 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 21:56:43,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 21:56:46,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:56:46,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 1693 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 21:56:46,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:56:46,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:56:46,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 21:56:47,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:56:47,199 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-03 21:56:47,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1792307616] [2021-11-03 21:56:47,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1792307616] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 21:56:47,200 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:56:47,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-03 21:56:47,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479642835] [2021-11-03 21:56:47,200 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-03 21:56:47,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 21:56:47,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-03 21:56:47,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 21:56:47,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-03 21:56:47,201 INFO L87 Difference]: Start difference. First operand 386 states and 458 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 8 states have internal predecessors, (99), 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) [2021-11-03 21:56:49,400 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:57:05,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:57:05,123 INFO L93 Difference]: Finished difference Result 860 states and 1024 transitions. [2021-11-03 21:57:05,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 21:57:05,123 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 8 states have internal predecessors, (99), 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 95 [2021-11-03 21:57:05,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:57:05,126 INFO L225 Difference]: With dead ends: 860 [2021-11-03 21:57:05,126 INFO L226 Difference]: Without dead ends: 808 [2021-11-03 21:57:05,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 216.63ms TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-11-03 21:57:05,127 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1024 mSDsluCounter, 2628 mSDsCounter, 0 mSdLazyCounter, 3487 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16213.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.93ms SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 3487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17685.90ms IncrementalHoareTripleChecker+Time [2021-11-03 21:57:05,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1024 Valid, 0 Invalid, 3534 Unknown, 0 Unchecked, 24.93ms Time], IncrementalHoareTripleChecker [46 Valid, 3487 Invalid, 1 Unknown, 0 Unchecked, 17685.90ms Time] [2021-11-03 21:57:05,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2021-11-03 21:57:05,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 388. [2021-11-03 21:57:05,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 375 states have (on average 1.2266666666666666) internal successors, (460), 387 states have internal predecessors, (460), 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) [2021-11-03 21:57:05,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 460 transitions. [2021-11-03 21:57:05,141 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 460 transitions. Word has length 95 [2021-11-03 21:57:05,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:57:05,142 INFO L470 AbstractCegarLoop]: Abstraction has 388 states and 460 transitions. [2021-11-03 21:57:05,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 8 states have internal predecessors, (99), 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) [2021-11-03 21:57:05,142 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 460 transitions. [2021-11-03 21:57:05,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-03 21:57:05,142 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:57:05,143 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:57:05,186 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-11-03 21:57:05,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-03 21:57:05,363 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 21:57:05,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:57:05,364 INFO L85 PathProgramCache]: Analyzing trace with hash -386699597, now seen corresponding path program 1 times [2021-11-03 21:57:05,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-03 21:57:05,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1651472364] [2021-11-03 21:57:05,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:57:05,367 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 21:57:05,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-03 21:57:05,368 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 21:57:05,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 21:57:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 21:57:08,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 1735 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 21:57:08,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 21:57:08,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:57:08,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 21:57:08,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 21:57:08,590 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-03 21:57:08,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1651472364] [2021-11-03 21:57:08,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1651472364] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 21:57:08,591 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 21:57:08,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-03 21:57:08,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464384425] [2021-11-03 21:57:08,591 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-03 21:57:08,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 21:57:08,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-03 21:57:08,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 21:57:08,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 21:57:08,592 INFO L87 Difference]: Start difference. First operand 388 states and 460 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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) [2021-11-03 21:57:10,775 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 21:57:18,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 21:57:18,746 INFO L93 Difference]: Finished difference Result 785 states and 927 transitions. [2021-11-03 21:57:18,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 21:57:18,746 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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 99 [2021-11-03 21:57:18,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 21:57:18,748 INFO L225 Difference]: With dead ends: 785 [2021-11-03 21:57:18,748 INFO L226 Difference]: Without dead ends: 699 [2021-11-03 21:57:18,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 94.15ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 21:57:18,749 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 627 mSDsluCounter, 1149 mSDsCounter, 0 mSdLazyCounter, 1701 mSolverCounterSat, 30 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9194.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.29ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1701 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10000.74ms IncrementalHoareTripleChecker+Time [2021-11-03 21:57:18,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [627 Valid, 0 Invalid, 1732 Unknown, 0 Unchecked, 9.29ms Time], IncrementalHoareTripleChecker [30 Valid, 1701 Invalid, 1 Unknown, 0 Unchecked, 10000.74ms Time] [2021-11-03 21:57:18,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2021-11-03 21:57:18,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 391. [2021-11-03 21:57:18,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 378 states have (on average 1.2248677248677249) internal successors, (463), 390 states have internal predecessors, (463), 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) [2021-11-03 21:57:18,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 463 transitions. [2021-11-03 21:57:18,785 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 463 transitions. Word has length 99 [2021-11-03 21:57:18,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 21:57:18,785 INFO L470 AbstractCegarLoop]: Abstraction has 391 states and 463 transitions. [2021-11-03 21:57:18,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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) [2021-11-03 21:57:18,786 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 463 transitions. [2021-11-03 21:57:18,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-03 21:57:18,786 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 21:57:18,786 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 21:57:18,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-03 21:57:18,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-03 21:57:18,987 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-03 21:57:18,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 21:57:18,988 INFO L85 PathProgramCache]: Analyzing trace with hash -2010018601, now seen corresponding path program 1 times [2021-11-03 21:57:18,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-03 21:57:18,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [576434883] [2021-11-03 21:57:18,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 21:57:18,991 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 21:57:18,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-03 21:57:18,992 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 21:57:18,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-03 22:03:31,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 22:03:32,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 1738 conjuncts, 59 conjunts are in the unsatisfiable core [2021-11-03 22:03:32,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 22:03:32,967 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-03 22:03:32,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 21 [2021-11-03 22:03:33,344 INFO L354 Elim1Store]: treesize reduction 22, result has 43.6 percent of original size [2021-11-03 22:03:33,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 40 [2021-11-03 22:03:34,532 INFO L354 Elim1Store]: treesize reduction 152, result has 22.8 percent of original size [2021-11-03 22:03:34,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 73 treesize of output 103 [2021-11-03 22:03:38,629 INFO L354 Elim1Store]: treesize reduction 112, result has 24.8 percent of original size [2021-11-03 22:03:38,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 104 treesize of output 129 [2021-11-03 22:03:43,896 INFO L354 Elim1Store]: treesize reduction 107, result has 36.3 percent of original size [2021-11-03 22:03:43,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 141 treesize of output 190 [2021-11-03 22:03:47,734 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 0 case distinctions, treesize of input 114 treesize of output 113 [2021-11-03 22:03:51,441 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 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-03 22:04:00,225 INFO L354 Elim1Store]: treesize reduction 68, result has 21.8 percent of original size [2021-11-03 22:04:00,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 207 treesize of output 191 [2021-11-03 22:04:00,308 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-11-03 22:04:00,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 196 treesize of output 195 [2021-11-03 22:04:22,980 INFO L354 Elim1Store]: treesize reduction 144, result has 29.8 percent of original size [2021-11-03 22:04:22,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 223 treesize of output 263 [2021-11-03 22:04:24,990 INFO L354 Elim1Store]: treesize reduction 204, result has 8.5 percent of original size [2021-11-03 22:04:24,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 112 treesize of output 86 [2021-11-03 22:04:25,079 INFO L354 Elim1Store]: treesize reduction 105, result has 7.9 percent of original size [2021-11-03 22:04:25,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 63 [2021-11-03 22:04:35,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 22:04:35,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 22:04:38,735 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_aws_mul_u64_checked_~r.base (_ BitVec 64)) (v_DerPreprocessor_4 (_ BitVec 64)) (ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ BitVec 64)) (v_DerPreprocessor_3 (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 64)) (v_DerPreprocessor_1 (_ BitVec 64))) (let ((.cse0 (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv4 64))) (.cse1 (bvadd c_ULTIMATE.start_aws_array_list_is_valid_~list.offset (_ bv32 64)))) (or (not (= (select (select (store |c_#memory_$Pointer$.base| ULTIMATE.start_aws_mul_u64_checked_~r.base (store (store (select |c_#memory_$Pointer$.base| ULTIMATE.start_aws_mul_u64_checked_~r.base) ULTIMATE.start_aws_mul_u64_checked_~r.offset v_DerPreprocessor_3) .cse0 v_DerPreprocessor_4)) c_ULTIMATE.start_aws_array_list_is_valid_~list.base) .cse1) (_ bv0 64))) (not (= (_ bv0 64) (select (select (store |c_#memory_$Pointer$.offset| ULTIMATE.start_aws_mul_u64_checked_~r.base (store (store (select |c_#memory_$Pointer$.offset| ULTIMATE.start_aws_mul_u64_checked_~r.base) ULTIMATE.start_aws_mul_u64_checked_~r.offset v_DerPreprocessor_1) .cse0 v_DerPreprocessor_2)) c_ULTIMATE.start_aws_array_list_is_valid_~list.base) .cse1)))))) is different from false [2021-11-03 22:04:40,967 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_aws_mul_u64_checked_~r.base (_ BitVec 64)) (v_DerPreprocessor_4 (_ BitVec 64)) (ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ BitVec 64)) (v_DerPreprocessor_3 (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 64)) (v_DerPreprocessor_1 (_ BitVec 64))) (let ((.cse0 (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv4 64))) (.cse1 (bvadd c_ULTIMATE.start_aws_array_list_copy_~from.offset (_ bv32 64)))) (or (not (= (_ bv0 64) (select (select (store |c_#memory_$Pointer$.offset| ULTIMATE.start_aws_mul_u64_checked_~r.base (store (store (select |c_#memory_$Pointer$.offset| ULTIMATE.start_aws_mul_u64_checked_~r.base) ULTIMATE.start_aws_mul_u64_checked_~r.offset v_DerPreprocessor_1) .cse0 v_DerPreprocessor_2)) c_ULTIMATE.start_aws_array_list_copy_~from.base) .cse1))) (not (= (_ bv0 64) (select (select (store |c_#memory_$Pointer$.base| ULTIMATE.start_aws_mul_u64_checked_~r.base (store (store (select |c_#memory_$Pointer$.base| ULTIMATE.start_aws_mul_u64_checked_~r.base) ULTIMATE.start_aws_mul_u64_checked_~r.offset v_DerPreprocessor_3) .cse0 v_DerPreprocessor_4)) c_ULTIMATE.start_aws_array_list_copy_~from.base) .cse1)))))) is different from false [2021-11-03 22:04:43,261 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_aws_mul_u64_checked_~r.base (_ BitVec 64)) (v_DerPreprocessor_4 (_ BitVec 64)) (ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ BitVec 64)) (v_DerPreprocessor_3 (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 64)) (v_DerPreprocessor_1 (_ BitVec 64))) (let ((.cse0 (bvadd ULTIMATE.start_aws_mul_u64_checked_~r.offset (_ bv4 64))) (.cse1 (bvadd (_ bv32 64) |c_ULTIMATE.start_aws_array_list_copy_harness_~#from~0.offset|))) (or (not (= (_ bv0 64) (select (select (store |c_#memory_$Pointer$.base| ULTIMATE.start_aws_mul_u64_checked_~r.base (store (store (select |c_#memory_$Pointer$.base| ULTIMATE.start_aws_mul_u64_checked_~r.base) ULTIMATE.start_aws_mul_u64_checked_~r.offset v_DerPreprocessor_3) .cse0 v_DerPreprocessor_4)) |c_ULTIMATE.start_aws_array_list_copy_harness_~#from~0.base|) .cse1))) (not (= (_ bv0 64) (select (select (store |c_#memory_$Pointer$.offset| ULTIMATE.start_aws_mul_u64_checked_~r.base (store (store (select |c_#memory_$Pointer$.offset| ULTIMATE.start_aws_mul_u64_checked_~r.base) ULTIMATE.start_aws_mul_u64_checked_~r.offset v_DerPreprocessor_1) .cse0 v_DerPreprocessor_2)) |c_ULTIMATE.start_aws_array_list_copy_harness_~#from~0.base|) .cse1)))))) is different from false [2021-11-03 22:04:49,447 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-03 22:04:49,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [576434883] [2021-11-03 22:04:49,448 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [ULTIMATE.start_aws_mul_u64_checked_~r.base, ULTIMATE.start_aws_mul_u64_checked_~r.offset] [2021-11-03 22:04:49,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1070382041] [2021-11-03 22:04:49,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 22:04:49,448 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 22:04:49,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-11-03 22:04:49,458 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 22:04:49,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process Killed by 15