./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_shrink_to_fit_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_shrink_to_fit_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 9017cdb66795bbbd8b9f62f9b398fe29d04e97206adeead5d1f2400c2ca8a92c --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 21:54:28,475 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 21:54:28,478 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 21:54:28,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 21:54:28,523 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 21:54:28,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 21:54:28,526 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 21:54:28,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 21:54:28,530 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 21:54:28,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 21:54:28,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 21:54:28,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 21:54:28,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 21:54:28,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 21:54:28,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 21:54:28,544 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 21:54:28,545 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 21:54:28,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 21:54:28,548 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 21:54:28,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 21:54:28,555 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 21:54:28,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 21:54:28,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 21:54:28,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 21:54:28,560 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 21:54:28,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 21:54:28,567 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 21:54:28,567 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 21:54:28,568 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 21:54:28,569 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 21:54:28,570 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 21:54:28,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 21:54:28,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 21:54:28,577 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 21:54:28,578 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 21:54:28,580 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 21:54:28,580 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 21:54:28,581 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 21:54:28,581 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 21:54:28,581 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 21:54:28,582 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 21:54:28,583 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 21:54:28,585 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-19 21:54:28,613 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 21:54:28,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 21:54:28,614 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 21:54:28,614 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 21:54:28,615 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 21:54:28,615 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 21:54:28,615 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 21:54:28,616 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 21:54:28,616 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 21:54:28,617 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 21:54:28,617 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 21:54:28,617 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 21:54:28,618 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 21:54:28,618 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 21:54:28,618 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 21:54:28,618 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 21:54:28,618 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 21:54:28,619 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 21:54:28,619 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 21:54:28,619 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 21:54:28,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 21:54:28,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 21:54:28,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 21:54:28,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 21:54:28,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 21:54:28,620 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 21:54:28,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 21:54:28,621 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 21:54:28,621 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 21:54:28,621 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 21:54:28,622 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9017cdb66795bbbd8b9f62f9b398fe29d04e97206adeead5d1f2400c2ca8a92c [2022-07-19 21:54:28,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 21:54:28,884 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 21:54:28,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 21:54:28,888 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 21:54:28,897 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 21:54:28,901 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_shrink_to_fit_harness.i [2022-07-19 21:54:28,977 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45c35ae64/d33269f5956246e48113aa2f98e54226/FLAG5b8849062 [2022-07-19 21:54:29,618 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 21:54:29,621 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_shrink_to_fit_harness.i [2022-07-19 21:54:29,661 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45c35ae64/d33269f5956246e48113aa2f98e54226/FLAG5b8849062 [2022-07-19 21:54:29,966 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45c35ae64/d33269f5956246e48113aa2f98e54226 [2022-07-19 21:54:29,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 21:54:29,970 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 21:54:29,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 21:54:29,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 21:54:29,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 21:54:29,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:54:29" (1/1) ... [2022-07-19 21:54:29,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1daea3a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:54:29, skipping insertion in model container [2022-07-19 21:54:29,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:54:29" (1/1) ... [2022-07-19 21:54:29,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 21:54:30,078 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 21:54:30,294 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_shrink_to_fit_harness.i[4502,4515] [2022-07-19 21:54:30,300 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_shrink_to_fit_harness.i[4562,4575] [2022-07-19 21:54:30,990 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-19 21:54:31,069 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,072 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,073 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,076 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,077 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,102 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,103 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,105 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,106 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,108 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,108 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,109 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,109 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,415 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-19 21:54:31,417 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-19 21:54:31,417 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-19 21:54:31,433 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-19 21:54:31,436 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-19 21:54:31,437 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-19 21:54:31,439 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-19 21:54:31,439 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-19 21:54:31,440 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-19 21:54:31,442 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-19 21:54:31,551 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,551 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,562 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,568 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 21:54:31,672 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 21:54:31,698 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_shrink_to_fit_harness.i[4502,4515] [2022-07-19 21:54:31,699 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_shrink_to_fit_harness.i[4562,4575] [2022-07-19 21:54:31,750 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-19 21:54:31,769 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,775 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,776 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,777 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,777 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,784 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,786 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,788 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,788 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,790 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,790 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,791 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,791 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,832 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-19 21:54:31,833 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-19 21:54:31,834 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-19 21:54:31,834 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-19 21:54:31,835 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-19 21:54:31,835 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-19 21:54:31,836 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-19 21:54:31,836 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-19 21:54:31,837 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-19 21:54:31,837 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-19 21:54:31,874 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,875 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,877 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,882 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 21:54:31,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 21:54:32,151 INFO L208 MainTranslator]: Completed translation [2022-07-19 21:54:32,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:54:32 WrapperNode [2022-07-19 21:54:32,152 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 21:54:32,153 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 21:54:32,153 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 21:54:32,153 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 21:54:32,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:54:32" (1/1) ... [2022-07-19 21:54:32,241 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:54:32" (1/1) ... [2022-07-19 21:54:32,306 INFO L137 Inliner]: procedures = 687, calls = 1671, calls flagged for inlining = 53, calls inlined = 11, statements flattened = 770 [2022-07-19 21:54:32,308 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 21:54:32,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 21:54:32,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 21:54:32,309 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 21:54:32,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:54:32" (1/1) ... [2022-07-19 21:54:32,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:54:32" (1/1) ... [2022-07-19 21:54:32,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:54:32" (1/1) ... [2022-07-19 21:54:32,331 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:54:32" (1/1) ... [2022-07-19 21:54:32,360 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:54:32" (1/1) ... [2022-07-19 21:54:32,363 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:54:32" (1/1) ... [2022-07-19 21:54:32,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:54:32" (1/1) ... [2022-07-19 21:54:32,383 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 21:54:32,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 21:54:32,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 21:54:32,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 21:54:32,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:54:32" (1/1) ... [2022-07-19 21:54:32,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 21:54:32,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:54:32,437 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 21:54:32,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 21:54:32,489 INFO L130 BoogieDeclarations]: Found specification of procedure memmove_impl [2022-07-19 21:54:32,490 INFO L138 BoogieDeclarations]: Found implementation of procedure memmove_impl [2022-07-19 21:54:32,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 21:54:32,491 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-07-19 21:54:32,491 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-07-19 21:54:32,491 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-07-19 21:54:32,492 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-07-19 21:54:32,492 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-07-19 21:54:32,492 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-07-19 21:54:32,492 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2022-07-19 21:54:32,492 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2022-07-19 21:54:32,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 21:54:32,493 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-07-19 21:54:32,493 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-07-19 21:54:32,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-19 21:54:32,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-19 21:54:32,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-19 21:54:32,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 21:54:32,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-19 21:54:32,495 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-07-19 21:54:32,495 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-07-19 21:54:32,495 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_front_n [2022-07-19 21:54:32,495 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_front_n [2022-07-19 21:54:32,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 21:54:32,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 21:54:32,496 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-07-19 21:54:32,496 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-07-19 21:54:32,496 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-07-19 21:54:32,496 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-07-19 21:54:32,496 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-07-19 21:54:32,496 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-07-19 21:54:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-07-19 21:54:32,497 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-07-19 21:54:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2022-07-19 21:54:32,497 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2022-07-19 21:54:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-07-19 21:54:32,497 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-07-19 21:54:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-19 21:54:32,498 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-19 21:54:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-07-19 21:54:32,498 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-07-19 21:54:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2022-07-19 21:54:32,499 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2022-07-19 21:54:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 21:54:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-19 21:54:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-19 21:54:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-07-19 21:54:32,499 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-07-19 21:54:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-07-19 21:54:32,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-07-19 21:54:32,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 21:54:32,500 INFO L130 BoogieDeclarations]: Found specification of procedure my_memmove [2022-07-19 21:54:32,500 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memmove [2022-07-19 21:54:32,500 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-07-19 21:54:32,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-07-19 21:54:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 21:54:32,848 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 21:54:32,850 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 21:54:33,684 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 21:54:33,693 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 21:54:33,693 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 21:54:33,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:54:33 BoogieIcfgContainer [2022-07-19 21:54:33,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 21:54:33,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 21:54:33,697 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 21:54:33,701 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 21:54:33,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 09:54:29" (1/3) ... [2022-07-19 21:54:33,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10cc52be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:54:33, skipping insertion in model container [2022-07-19 21:54:33,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:54:32" (2/3) ... [2022-07-19 21:54:33,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10cc52be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:54:33, skipping insertion in model container [2022-07-19 21:54:33,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:54:33" (3/3) ... [2022-07-19 21:54:33,704 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_shrink_to_fit_harness.i [2022-07-19 21:54:33,718 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 21:54:33,718 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 21:54:33,768 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 21:54:33,774 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@457be63b, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1effcb89 [2022-07-19 21:54:33,774 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 21:54:33,779 INFO L276 IsEmpty]: Start isEmpty. Operand has 250 states, 151 states have (on average 1.218543046357616) internal successors, (184), 152 states have internal predecessors, (184), 75 states have call successors, (75), 22 states have call predecessors, (75), 22 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2022-07-19 21:54:33,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-19 21:54:33,789 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 21:54:33,790 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 21:54:33,790 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 21:54:33,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:54:33,795 INFO L85 PathProgramCache]: Analyzing trace with hash 671572415, now seen corresponding path program 1 times [2022-07-19 21:54:33,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:54:33,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543320172] [2022-07-19 21:54:33,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:54:33,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:54:34,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:54:34,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 21:54:34,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:54:34,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 21:54:34,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:54:34,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 21:54:34,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:54:34,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 21:54:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:54:34,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-19 21:54:34,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:54:34,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-19 21:54:34,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:54:34,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 21:54:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:54:34,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-19 21:54:34,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:54:34,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-19 21:54:34,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:54:34,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 21:54:34,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:54:34,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 21:54:34,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:54:34,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-19 21:54:34,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:54:34,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-19 21:54:34,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:54:34,612 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-19 21:54:34,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:54:34,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543320172] [2022-07-19 21:54:34,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543320172] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 21:54:34,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995508860] [2022-07-19 21:54:34,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:54:34,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:54:34,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:54:34,619 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 21:54:34,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-19 21:54:35,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:54:35,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 2071 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-19 21:54:35,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 21:54:35,236 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-19 21:54:35,237 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 21:54:35,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995508860] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:54:35,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 21:54:35,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2022-07-19 21:54:35,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196489561] [2022-07-19 21:54:35,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:54:35,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 21:54:35,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:54:35,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 21:54:35,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-07-19 21:54:35,283 INFO L87 Difference]: Start difference. First operand has 250 states, 151 states have (on average 1.218543046357616) internal successors, (184), 152 states have internal predecessors, (184), 75 states have call successors, (75), 22 states have call predecessors, (75), 22 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-19 21:54:35,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 21:54:35,683 INFO L93 Difference]: Finished difference Result 495 states and 721 transitions. [2022-07-19 21:54:35,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 21:54:35,685 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 82 [2022-07-19 21:54:35,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 21:54:35,696 INFO L225 Difference]: With dead ends: 495 [2022-07-19 21:54:35,697 INFO L226 Difference]: Without dead ends: 247 [2022-07-19 21:54:35,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-07-19 21:54:35,705 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 350 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 1005 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 21:54:35,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 1005 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 21:54:35,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2022-07-19 21:54:35,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2022-07-19 21:54:35,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 148 states have (on average 1.2094594594594594) internal successors, (179), 150 states have internal predecessors, (179), 75 states have call successors, (75), 22 states have call predecessors, (75), 23 states have return successors, (86), 74 states have call predecessors, (86), 74 states have call successors, (86) [2022-07-19 21:54:35,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 340 transitions. [2022-07-19 21:54:35,766 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 340 transitions. Word has length 82 [2022-07-19 21:54:35,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 21:54:35,767 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 340 transitions. [2022-07-19 21:54:35,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-19 21:54:35,767 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 340 transitions. [2022-07-19 21:54:35,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-19 21:54:35,770 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 21:54:35,771 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 21:54:35,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-19 21:54:35,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-07-19 21:54:35,976 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 21:54:35,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:54:35,976 INFO L85 PathProgramCache]: Analyzing trace with hash 82360988, now seen corresponding path program 1 times [2022-07-19 21:54:35,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:54:35,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375230441] [2022-07-19 21:54:35,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:54:35,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:54:36,069 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 21:54:36,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1863822145] [2022-07-19 21:54:36,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:54:36,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:54:36,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:54:36,072 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 21:54:36,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-19 21:54:36,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:54:36,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 2207 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 21:54:36,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 21:54:36,531 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-19 21:54:36,532 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 21:54:36,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:54:36,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375230441] [2022-07-19 21:54:36,532 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 21:54:36,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863822145] [2022-07-19 21:54:36,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863822145] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:54:36,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:54:36,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 21:54:36,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865418886] [2022-07-19 21:54:36,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:54:36,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 21:54:36,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:54:36,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 21:54:36,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 21:54:36,536 INFO L87 Difference]: Start difference. First operand 247 states and 340 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-19 21:54:36,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 21:54:36,592 INFO L93 Difference]: Finished difference Result 473 states and 668 transitions. [2022-07-19 21:54:36,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 21:54:36,593 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 97 [2022-07-19 21:54:36,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 21:54:36,596 INFO L225 Difference]: With dead ends: 473 [2022-07-19 21:54:36,596 INFO L226 Difference]: Without dead ends: 252 [2022-07-19 21:54:36,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 21:54:36,598 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 10 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 21:54:36,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 968 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 21:54:36,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2022-07-19 21:54:36,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 249. [2022-07-19 21:54:36,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 150 states have (on average 1.2066666666666668) internal successors, (181), 152 states have internal predecessors, (181), 75 states have call successors, (75), 22 states have call predecessors, (75), 23 states have return successors, (86), 74 states have call predecessors, (86), 74 states have call successors, (86) [2022-07-19 21:54:36,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 342 transitions. [2022-07-19 21:54:36,621 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 342 transitions. Word has length 97 [2022-07-19 21:54:36,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 21:54:36,621 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 342 transitions. [2022-07-19 21:54:36,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-19 21:54:36,622 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 342 transitions. [2022-07-19 21:54:36,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-19 21:54:36,623 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 21:54:36,624 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 21:54:36,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-19 21:54:36,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-07-19 21:54:36,843 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 21:54:36,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:54:36,843 INFO L85 PathProgramCache]: Analyzing trace with hash -793658018, now seen corresponding path program 1 times [2022-07-19 21:54:36,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:54:36,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104712918] [2022-07-19 21:54:36,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:54:36,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:54:36,924 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 21:54:36,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [510537849] [2022-07-19 21:54:36,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:54:36,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:54:36,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:54:36,927 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 21:54:36,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-19 21:54:37,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:54:37,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 2212 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-19 21:54:37,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 21:54:37,397 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-07-19 21:54:37,398 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 21:54:37,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:54:37,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104712918] [2022-07-19 21:54:37,398 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 21:54:37,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510537849] [2022-07-19 21:54:37,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510537849] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:54:37,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:54:37,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 21:54:37,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145904386] [2022-07-19 21:54:37,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:54:37,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 21:54:37,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:54:37,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 21:54:37,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-19 21:54:37,401 INFO L87 Difference]: Start difference. First operand 249 states and 342 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2022-07-19 21:54:37,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 21:54:37,940 INFO L93 Difference]: Finished difference Result 467 states and 640 transitions. [2022-07-19 21:54:37,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 21:54:37,941 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 97 [2022-07-19 21:54:37,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 21:54:37,945 INFO L225 Difference]: With dead ends: 467 [2022-07-19 21:54:37,945 INFO L226 Difference]: Without dead ends: 249 [2022-07-19 21:54:37,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-07-19 21:54:37,950 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 362 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 1406 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-19 21:54:37,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 1406 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-19 21:54:37,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-07-19 21:54:38,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2022-07-19 21:54:38,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 150 states have (on average 1.2066666666666668) internal successors, (181), 152 states have internal predecessors, (181), 75 states have call successors, (75), 22 states have call predecessors, (75), 23 states have return successors, (83), 74 states have call predecessors, (83), 74 states have call successors, (83) [2022-07-19 21:54:38,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 339 transitions. [2022-07-19 21:54:38,014 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 339 transitions. Word has length 97 [2022-07-19 21:54:38,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 21:54:38,016 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 339 transitions. [2022-07-19 21:54:38,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2022-07-19 21:54:38,017 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 339 transitions. [2022-07-19 21:54:38,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-19 21:54:38,026 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 21:54:38,027 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 21:54:38,062 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-19 21:54:38,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:54:38,250 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 21:54:38,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:54:38,251 INFO L85 PathProgramCache]: Analyzing trace with hash -599596947, now seen corresponding path program 2 times [2022-07-19 21:54:38,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:54:38,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588847553] [2022-07-19 21:54:38,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:54:38,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:54:38,326 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 21:54:38,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [406623010] [2022-07-19 21:54:38,326 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-19 21:54:38,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:54:38,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:54:38,328 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 21:54:38,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-19 21:54:38,774 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-19 21:54:38,774 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 21:54:38,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 2353 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-19 21:54:38,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 21:54:38,874 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-07-19 21:54:38,874 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 21:54:38,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:54:38,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588847553] [2022-07-19 21:54:38,875 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 21:54:38,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406623010] [2022-07-19 21:54:38,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406623010] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:54:38,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:54:38,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-19 21:54:38,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855075218] [2022-07-19 21:54:38,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:54:38,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-19 21:54:38,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:54:38,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-19 21:54:38,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-19 21:54:38,878 INFO L87 Difference]: Start difference. First operand 249 states and 339 transitions. Second operand has 10 states, 10 states have (on average 4.4) internal successors, (44), 8 states have internal predecessors, (44), 5 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2022-07-19 21:54:39,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 21:54:39,471 INFO L93 Difference]: Finished difference Result 464 states and 632 transitions. [2022-07-19 21:54:39,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 21:54:39,472 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 8 states have internal predecessors, (44), 5 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) Word has length 112 [2022-07-19 21:54:39,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 21:54:39,474 INFO L225 Difference]: With dead ends: 464 [2022-07-19 21:54:39,474 INFO L226 Difference]: Without dead ends: 249 [2022-07-19 21:54:39,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2022-07-19 21:54:39,476 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 364 mSDsluCounter, 1584 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 1836 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-19 21:54:39,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 1836 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-19 21:54:39,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-07-19 21:54:39,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2022-07-19 21:54:39,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 150 states have (on average 1.2066666666666668) internal successors, (181), 152 states have internal predecessors, (181), 75 states have call successors, (75), 22 states have call predecessors, (75), 23 states have return successors, (81), 74 states have call predecessors, (81), 74 states have call successors, (81) [2022-07-19 21:54:39,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 337 transitions. [2022-07-19 21:54:39,501 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 337 transitions. Word has length 112 [2022-07-19 21:54:39,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 21:54:39,503 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 337 transitions. [2022-07-19 21:54:39,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 8 states have internal predecessors, (44), 5 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2022-07-19 21:54:39,504 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 337 transitions. [2022-07-19 21:54:39,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-19 21:54:39,505 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 21:54:39,506 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 21:54:39,536 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-07-19 21:54:39,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:54:39,720 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 21:54:39,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:54:39,720 INFO L85 PathProgramCache]: Analyzing trace with hash 167340177, now seen corresponding path program 1 times [2022-07-19 21:54:39,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:54:39,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629430043] [2022-07-19 21:54:39,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:54:39,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:54:39,802 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 21:54:39,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [461690663] [2022-07-19 21:54:39,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:54:39,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:54:39,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:54:39,804 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 21:54:39,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-19 21:54:40,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:54:40,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 2635 conjuncts, 283 conjunts are in the unsatisfiable core [2022-07-19 21:54:40,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 21:54:40,646 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-19 21:54:40,912 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((|v___CPROVER_overflow_mult_~#c~1.base_20| Int) (v_ArrVal_319 Int)) (and (= (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_20|) 0) (= |c_#valid| (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_20| v_ArrVal_319)))) (exists ((v_ArrVal_320 (Array Int Int))) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_320) |c_#memory_int|))) is different from true [2022-07-19 21:54:40,949 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-19 21:54:41,241 INFO L356 Elim1Store]: treesize reduction 53, result has 32.9 percent of original size [2022-07-19 21:54:41,242 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 53 [2022-07-19 21:55:07,539 INFO L356 Elim1Store]: treesize reduction 53, result has 32.9 percent of original size [2022-07-19 21:55:07,539 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 53 [2022-07-19 21:55:07,555 INFO L390 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 22 treesize of output 21 [2022-07-19 21:55:22,810 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 21:55:22,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 21:55:22,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 21:55:22,815 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 34 [2022-07-19 21:55:22,834 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-07-19 21:55:22,834 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-07-19 21:55:53,207 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 21:55:53,208 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 136 treesize of output 80 [2022-07-19 21:55:53,806 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 44 proven. 107 refuted. 0 times theorem prover too weak. 14 trivial. 9 not checked. [2022-07-19 21:55:53,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 21:56:14,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:56:14,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629430043] [2022-07-19 21:56:14,658 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 21:56:14,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461690663] [2022-07-19 21:56:14,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461690663] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 21:56:14,658 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-19 21:56:14,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57] total 57 [2022-07-19 21:56:14,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441036004] [2022-07-19 21:56:14,663 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-19 21:56:14,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2022-07-19 21:56:14,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:56:14,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2022-07-19 21:56:14,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=3331, Unknown=26, NotChecked=116, Total=3660 [2022-07-19 21:56:14,665 INFO L87 Difference]: Start difference. First operand 249 states and 337 transitions. Second operand has 57 states, 47 states have (on average 1.9361702127659575) internal successors, (91), 44 states have internal predecessors, (91), 17 states have call successors, (23), 10 states have call predecessors, (23), 16 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) [2022-07-19 21:56:54,319 WARN L233 SmtUtils]: Spent 7.97s on a formula simplification. DAG size of input: 86 DAG size of output: 78 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-19 21:57:04,686 WARN L233 SmtUtils]: Spent 5.75s on a formula simplification. DAG size of input: 80 DAG size of output: 72 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-19 21:57:18,939 WARN L233 SmtUtils]: Spent 9.74s on a formula simplification. DAG size of input: 81 DAG size of output: 73 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-19 21:57:39,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 21:57:39,471 INFO L93 Difference]: Finished difference Result 332 states and 456 transitions. [2022-07-19 21:57:39,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-07-19 21:57:39,472 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 47 states have (on average 1.9361702127659575) internal successors, (91), 44 states have internal predecessors, (91), 17 states have call successors, (23), 10 states have call predecessors, (23), 16 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) Word has length 142 [2022-07-19 21:57:39,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 21:57:39,476 INFO L225 Difference]: With dead ends: 332 [2022-07-19 21:57:39,476 INFO L226 Difference]: Without dead ends: 328 [2022-07-19 21:57:39,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 79 SyntacticMatches, 9 SemanticMatches, 84 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2064 ImplicationChecksByTransitivity, 142.9s TimeCoverageRelationStatistics Valid=395, Invalid=6698, Unknown=51, NotChecked=166, Total=7310 [2022-07-19 21:57:39,479 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 290 mSDsluCounter, 4140 mSDsCounter, 0 mSdLazyCounter, 3364 mSolverCounterSat, 304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 4429 SdHoareTripleChecker+Invalid, 9806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 304 IncrementalHoareTripleChecker+Valid, 3364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6138 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-19 21:57:39,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 4429 Invalid, 9806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [304 Valid, 3364 Invalid, 0 Unknown, 6138 Unchecked, 3.4s Time] [2022-07-19 21:57:39,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2022-07-19 21:57:39,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 306. [2022-07-19 21:57:39,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 186 states have (on average 1.1935483870967742) internal successors, (222), 191 states have internal predecessors, (222), 88 states have call successors, (88), 29 states have call predecessors, (88), 31 states have return successors, (116), 85 states have call predecessors, (116), 87 states have call successors, (116) [2022-07-19 21:57:39,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 426 transitions. [2022-07-19 21:57:39,518 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 426 transitions. Word has length 142 [2022-07-19 21:57:39,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 21:57:39,520 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 426 transitions. [2022-07-19 21:57:39,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 47 states have (on average 1.9361702127659575) internal successors, (91), 44 states have internal predecessors, (91), 17 states have call successors, (23), 10 states have call predecessors, (23), 16 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) [2022-07-19 21:57:39,521 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 426 transitions. [2022-07-19 21:57:39,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-19 21:57:39,523 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 21:57:39,523 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 21:57:39,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-19 21:57:39,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:57:39,747 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 21:57:39,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:57:39,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1049013545, now seen corresponding path program 1 times [2022-07-19 21:57:39,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:57:39,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148279673] [2022-07-19 21:57:39,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:57:39,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:57:39,833 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 21:57:39,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1602310305] [2022-07-19 21:57:39,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:57:39,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:57:39,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:57:39,835 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 21:57:39,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-19 21:57:40,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:57:40,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 2639 conjuncts, 31 conjunts are in the unsatisfiable core [2022-07-19 21:57:40,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 21:57:40,463 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-07-19 21:57:40,464 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 21:57:40,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:57:40,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148279673] [2022-07-19 21:57:40,464 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 21:57:40,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602310305] [2022-07-19 21:57:40,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602310305] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:57:40,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:57:40,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-19 21:57:40,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542439261] [2022-07-19 21:57:40,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:57:40,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-19 21:57:40,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:57:40,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-19 21:57:40,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-07-19 21:57:40,466 INFO L87 Difference]: Start difference. First operand 306 states and 426 transitions. Second operand has 13 states, 11 states have (on average 6.363636363636363) internal successors, (70), 10 states have internal predecessors, (70), 4 states have call successors, (21), 2 states have call predecessors, (21), 6 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) [2022-07-19 21:57:40,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 21:57:40,869 INFO L93 Difference]: Finished difference Result 554 states and 789 transitions. [2022-07-19 21:57:40,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 21:57:40,870 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.363636363636363) internal successors, (70), 10 states have internal predecessors, (70), 4 states have call successors, (21), 2 states have call predecessors, (21), 6 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) Word has length 148 [2022-07-19 21:57:40,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 21:57:40,873 INFO L225 Difference]: With dead ends: 554 [2022-07-19 21:57:40,873 INFO L226 Difference]: Without dead ends: 318 [2022-07-19 21:57:40,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-07-19 21:57:40,875 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 12 mSDsluCounter, 3555 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 3889 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 21:57:40,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 3889 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 21:57:40,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2022-07-19 21:57:40,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 313. [2022-07-19 21:57:40,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 192 states have (on average 1.1927083333333333) internal successors, (229), 198 states have internal predecessors, (229), 88 states have call successors, (88), 29 states have call predecessors, (88), 32 states have return successors, (132), 85 states have call predecessors, (132), 87 states have call successors, (132) [2022-07-19 21:57:40,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 449 transitions. [2022-07-19 21:57:40,896 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 449 transitions. Word has length 148 [2022-07-19 21:57:40,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 21:57:40,896 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 449 transitions. [2022-07-19 21:57:40,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 6.363636363636363) internal successors, (70), 10 states have internal predecessors, (70), 4 states have call successors, (21), 2 states have call predecessors, (21), 6 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) [2022-07-19 21:57:40,897 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 449 transitions. [2022-07-19 21:57:40,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-19 21:57:40,899 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 21:57:40,899 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 21:57:40,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-19 21:57:41,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:57:41,115 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 21:57:41,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:57:41,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1668257282, now seen corresponding path program 1 times [2022-07-19 21:57:41,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:57:41,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980571996] [2022-07-19 21:57:41,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:57:41,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:57:41,176 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 21:57:41,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1857816781] [2022-07-19 21:57:41,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:57:41,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:57:41,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:57:41,178 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 21:57:41,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-19 21:57:41,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:57:41,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 2674 conjuncts, 48 conjunts are in the unsatisfiable core [2022-07-19 21:57:41,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 21:57:41,699 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-07-19 21:57:41,793 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-07-19 21:57:41,793 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 21 [2022-07-19 21:57:43,925 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_589 Int)) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_589)) |c_#memory_$Pointer$.base|)) is different from true [2022-07-19 21:58:02,100 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2022-07-19 21:58:02,101 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 21:58:02,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:58:02,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980571996] [2022-07-19 21:58:02,101 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 21:58:02,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857816781] [2022-07-19 21:58:02,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1857816781] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:58:02,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:58:02,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-19 21:58:02,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389574724] [2022-07-19 21:58:02,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:58:02,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-19 21:58:02,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:58:02,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-19 21:58:02,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=255, Unknown=7, NotChecked=32, Total=342 [2022-07-19 21:58:02,104 INFO L87 Difference]: Start difference. First operand 313 states and 449 transitions. Second operand has 19 states, 17 states have (on average 3.588235294117647) internal successors, (61), 16 states have internal predecessors, (61), 8 states have call successors, (21), 4 states have call predecessors, (21), 7 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) [2022-07-19 21:58:03,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 21:58:03,790 INFO L93 Difference]: Finished difference Result 641 states and 943 transitions. [2022-07-19 21:58:03,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-19 21:58:03,791 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.588235294117647) internal successors, (61), 16 states have internal predecessors, (61), 8 states have call successors, (21), 4 states have call predecessors, (21), 7 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) Word has length 148 [2022-07-19 21:58:03,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 21:58:03,793 INFO L225 Difference]: With dead ends: 641 [2022-07-19 21:58:03,793 INFO L226 Difference]: Without dead ends: 391 [2022-07-19 21:58:03,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 129 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 20.3s TimeCoverageRelationStatistics Valid=66, Invalid=393, Unknown=7, NotChecked=40, Total=506 [2022-07-19 21:58:03,794 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 190 mSDsluCounter, 2255 mSDsCounter, 0 mSdLazyCounter, 1777 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 2624 SdHoareTripleChecker+Invalid, 3873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2000 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-19 21:58:03,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 2624 Invalid, 3873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1777 Invalid, 0 Unknown, 2000 Unchecked, 1.5s Time] [2022-07-19 21:58:03,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2022-07-19 21:58:03,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 316. [2022-07-19 21:58:03,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 194 states have (on average 1.190721649484536) internal successors, (231), 200 states have internal predecessors, (231), 88 states have call successors, (88), 30 states have call predecessors, (88), 33 states have return successors, (131), 85 states have call predecessors, (131), 87 states have call successors, (131) [2022-07-19 21:58:03,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 450 transitions. [2022-07-19 21:58:03,823 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 450 transitions. Word has length 148 [2022-07-19 21:58:03,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 21:58:03,823 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 450 transitions. [2022-07-19 21:58:03,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.588235294117647) internal successors, (61), 16 states have internal predecessors, (61), 8 states have call successors, (21), 4 states have call predecessors, (21), 7 states have return successors, (18), 8 states have call predecessors, (18), 8 states have call successors, (18) [2022-07-19 21:58:03,824 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 450 transitions. [2022-07-19 21:58:03,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-19 21:58:03,825 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 21:58:03,825 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 21:58:03,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-19 21:58:04,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:58:04,048 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 21:58:04,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:58:04,048 INFO L85 PathProgramCache]: Analyzing trace with hash -388629493, now seen corresponding path program 2 times [2022-07-19 21:58:04,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:58:04,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388646405] [2022-07-19 21:58:04,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:58:04,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:58:04,117 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 21:58:04,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1164352173] [2022-07-19 21:58:04,117 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-19 21:58:04,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:58:04,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:58:04,119 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 21:58:04,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-19 21:58:05,221 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-19 21:58:05,222 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 21:58:05,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 2639 conjuncts, 31 conjunts are in the unsatisfiable core [2022-07-19 21:58:05,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 21:58:05,366 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-19 21:58:05,366 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 21:58:05,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:58:05,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388646405] [2022-07-19 21:58:05,367 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 21:58:05,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164352173] [2022-07-19 21:58:05,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164352173] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:58:05,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:58:05,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 21:58:05,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254419742] [2022-07-19 21:58:05,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:58:05,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 21:58:05,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:58:05,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 21:58:05,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-19 21:58:05,368 INFO L87 Difference]: Start difference. First operand 316 states and 450 transitions. Second operand has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 9 states have internal predecessors, (73), 3 states have call successors, (21), 2 states have call predecessors, (21), 6 states have return successors, (19), 5 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-19 21:58:05,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 21:58:05,765 INFO L93 Difference]: Finished difference Result 561 states and 800 transitions. [2022-07-19 21:58:05,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-19 21:58:05,766 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 9 states have internal predecessors, (73), 3 states have call successors, (21), 2 states have call predecessors, (21), 6 states have return successors, (19), 5 states have call predecessors, (19), 3 states have call successors, (19) Word has length 148 [2022-07-19 21:58:05,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 21:58:05,769 INFO L225 Difference]: With dead ends: 561 [2022-07-19 21:58:05,769 INFO L226 Difference]: Without dead ends: 316 [2022-07-19 21:58:05,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-07-19 21:58:05,771 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 11 mSDsluCounter, 3210 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 3541 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 21:58:05,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 3541 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 21:58:05,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-07-19 21:58:05,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2022-07-19 21:58:05,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 194 states have (on average 1.190721649484536) internal successors, (231), 200 states have internal predecessors, (231), 88 states have call successors, (88), 30 states have call predecessors, (88), 33 states have return successors, (129), 85 states have call predecessors, (129), 87 states have call successors, (129) [2022-07-19 21:58:05,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 448 transitions. [2022-07-19 21:58:05,792 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 448 transitions. Word has length 148 [2022-07-19 21:58:05,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 21:58:05,792 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 448 transitions. [2022-07-19 21:58:05,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 9 states have internal predecessors, (73), 3 states have call successors, (21), 2 states have call predecessors, (21), 6 states have return successors, (19), 5 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-19 21:58:05,793 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 448 transitions. [2022-07-19 21:58:05,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-07-19 21:58:05,795 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 21:58:05,795 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 21:58:05,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-19 21:58:06,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-07-19 21:58:06,016 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 21:58:06,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:58:06,016 INFO L85 PathProgramCache]: Analyzing trace with hash -2068834295, now seen corresponding path program 1 times [2022-07-19 21:58:06,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:58:06,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075119721] [2022-07-19 21:58:06,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:58:06,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:58:06,074 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 21:58:06,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1761170682] [2022-07-19 21:58:06,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:58:06,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:58:06,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:58:06,086 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 21:58:06,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-19 21:58:06,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:58:06,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 2635 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-19 21:58:06,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 21:58:06,622 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-07-19 21:58:06,623 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 21:58:06,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:58:06,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075119721] [2022-07-19 21:58:06,623 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 21:58:06,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761170682] [2022-07-19 21:58:06,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761170682] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:58:06,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:58:06,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 21:58:06,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519925783] [2022-07-19 21:58:06,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:58:06,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 21:58:06,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:58:06,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 21:58:06,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 21:58:06,626 INFO L87 Difference]: Start difference. First operand 316 states and 448 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-19 21:58:06,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 21:58:06,925 INFO L93 Difference]: Finished difference Result 576 states and 884 transitions. [2022-07-19 21:58:06,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 21:58:06,926 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 144 [2022-07-19 21:58:06,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 21:58:06,929 INFO L225 Difference]: With dead ends: 576 [2022-07-19 21:58:06,929 INFO L226 Difference]: Without dead ends: 326 [2022-07-19 21:58:06,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 21:58:06,931 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 7 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1243 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 21:58:06,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1243 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 21:58:06,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2022-07-19 21:58:06,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 318. [2022-07-19 21:58:06,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 196 states have (on average 1.1887755102040816) internal successors, (233), 202 states have internal predecessors, (233), 88 states have call successors, (88), 30 states have call predecessors, (88), 33 states have return successors, (129), 85 states have call predecessors, (129), 87 states have call successors, (129) [2022-07-19 21:58:06,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 450 transitions. [2022-07-19 21:58:06,950 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 450 transitions. Word has length 144 [2022-07-19 21:58:06,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 21:58:06,951 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 450 transitions. [2022-07-19 21:58:06,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-19 21:58:06,951 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 450 transitions. [2022-07-19 21:58:06,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-07-19 21:58:06,953 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 21:58:06,953 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 21:58:06,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-19 21:58:07,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:58:07,167 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 21:58:07,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:58:07,168 INFO L85 PathProgramCache]: Analyzing trace with hash 366669271, now seen corresponding path program 1 times [2022-07-19 21:58:07,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:58:07,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369115669] [2022-07-19 21:58:07,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:58:07,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:58:07,258 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 21:58:07,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1339736883] [2022-07-19 21:58:07,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:58:07,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:58:07,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:58:07,260 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 21:58:07,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-19 21:58:07,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:58:07,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 2640 conjuncts, 118 conjunts are in the unsatisfiable core [2022-07-19 21:58:07,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 21:58:08,335 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_950 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_948 Int) (v_ArrVal_951 (Array Int Int))) (and (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_951) |c_#memory_int|) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_948))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_950))))) is different from true [2022-07-19 21:58:09,142 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 21:58:09,142 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-07-19 21:58:09,147 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 6 [2022-07-19 21:58:09,264 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 133 proven. 9 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-19 21:58:09,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 21:58:10,535 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_971 Int) (v_ArrVal_970 Int) (v_ArrVal_969 (Array Int Int)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_25| Int)) (or (= (mod (select (select (store |c_#memory_int| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_25| v_ArrVal_969) |c_aws_array_list_pop_front_n_~list#1.base|) (+ |c_aws_array_list_pop_front_n_~list#1.offset| 8)) 18446744073709551616) 0) (let ((.cse0 (+ 32 |c_aws_array_list_pop_front_n_~list#1.offset|))) (and (= (select (select (store |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_25| (store (select |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_25|) 0 v_ArrVal_971)) |c_aws_array_list_pop_front_n_~list#1.base|) .cse0) 0) (= (select (select (store |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_25| (store (select |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_25|) 0 v_ArrVal_970)) |c_aws_array_list_pop_front_n_~list#1.base|) .cse0) 0))))) is different from false [2022-07-19 21:58:10,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:58:10,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369115669] [2022-07-19 21:58:10,538 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 21:58:10,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339736883] [2022-07-19 21:58:10,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339736883] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 21:58:10,538 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-19 21:58:10,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2022-07-19 21:58:10,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036696850] [2022-07-19 21:58:10,538 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-19 21:58:10,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-07-19 21:58:10,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:58:10,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-07-19 21:58:10,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=963, Unknown=9, NotChecked=126, Total=1190 [2022-07-19 21:58:10,540 INFO L87 Difference]: Start difference. First operand 318 states and 450 transitions. Second operand has 26 states, 23 states have (on average 3.347826086956522) internal successors, (77), 22 states have internal predecessors, (77), 9 states have call successors, (22), 5 states have call predecessors, (22), 7 states have return successors, (19), 8 states have call predecessors, (19), 9 states have call successors, (19) [2022-07-19 21:58:15,472 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-19 21:58:17,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 21:58:17,436 INFO L93 Difference]: Finished difference Result 672 states and 1017 transitions. [2022-07-19 21:58:17,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-07-19 21:58:17,437 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 23 states have (on average 3.347826086956522) internal successors, (77), 22 states have internal predecessors, (77), 9 states have call successors, (22), 5 states have call predecessors, (22), 7 states have return successors, (19), 8 states have call predecessors, (19), 9 states have call successors, (19) Word has length 144 [2022-07-19 21:58:17,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 21:58:17,440 INFO L225 Difference]: With dead ends: 672 [2022-07-19 21:58:17,440 INFO L226 Difference]: Without dead ends: 419 [2022-07-19 21:58:17,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 175 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=234, Invalid=2204, Unknown=20, NotChecked=194, Total=2652 [2022-07-19 21:58:17,442 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 180 mSDsluCounter, 2332 mSDsCounter, 0 mSdLazyCounter, 4091 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 2627 SdHoareTripleChecker+Invalid, 6540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 4091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2333 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-07-19 21:58:17,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 2627 Invalid, 6540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 4091 Invalid, 0 Unknown, 2333 Unchecked, 5.8s Time] [2022-07-19 21:58:17,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2022-07-19 21:58:17,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 341. [2022-07-19 21:58:17,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 211 states have (on average 1.1753554502369667) internal successors, (248), 219 states have internal predecessors, (248), 92 states have call successors, (92), 34 states have call predecessors, (92), 37 states have return successors, (165), 87 states have call predecessors, (165), 91 states have call successors, (165) [2022-07-19 21:58:17,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 505 transitions. [2022-07-19 21:58:17,469 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 505 transitions. Word has length 144 [2022-07-19 21:58:17,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 21:58:17,470 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 505 transitions. [2022-07-19 21:58:17,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 23 states have (on average 3.347826086956522) internal successors, (77), 22 states have internal predecessors, (77), 9 states have call successors, (22), 5 states have call predecessors, (22), 7 states have return successors, (19), 8 states have call predecessors, (19), 9 states have call successors, (19) [2022-07-19 21:58:17,470 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 505 transitions. [2022-07-19 21:58:17,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-19 21:58:17,472 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 21:58:17,472 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 21:58:17,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-19 21:58:17,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-19 21:58:17,687 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 21:58:17,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:58:17,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1414243915, now seen corresponding path program 3 times [2022-07-19 21:58:17,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:58:17,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602522366] [2022-07-19 21:58:17,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:58:17,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:58:17,748 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 21:58:17,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1417596076] [2022-07-19 21:58:17,749 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-19 21:58:17,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 21:58:17,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:58:17,751 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 21:58:17,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-19 21:58:18,753 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-19 21:58:18,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 21:58:18,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 2128 conjuncts, 159 conjunts are in the unsatisfiable core [2022-07-19 21:58:18,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 21:58:18,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 21:58:18,965 INFO L356 Elim1Store]: treesize reduction 64, result has 42.3 percent of original size [2022-07-19 21:58:18,965 INFO L390 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 4 case distinctions, treesize of input 33 treesize of output 59