./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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_byte_cursor_eq_c_str_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 f87ca444cebdd8343e0a486129ff23acad574c7cfb073abcacffd6c901ccf3af --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 22:17:57,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 22:17:57,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 22:17:57,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 22:17:57,833 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 22:17:57,834 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 22:17:57,836 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 22:17:57,838 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 22:17:57,840 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 22:17:57,844 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 22:17:57,845 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 22:17:57,846 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 22:17:57,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 22:17:57,848 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 22:17:57,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 22:17:57,852 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 22:17:57,852 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 22:17:57,854 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 22:17:57,855 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 22:17:57,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 22:17:57,862 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 22:17:57,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 22:17:57,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 22:17:57,864 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 22:17:57,865 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 22:17:57,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 22:17:57,870 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 22:17:57,870 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 22:17:57,871 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 22:17:57,872 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 22:17:57,873 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 22:17:57,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 22:17:57,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 22:17:57,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 22:17:57,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 22:17:57,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 22:17:57,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 22:17:57,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 22:17:57,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 22:17:57,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 22:17:57,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 22:17:57,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 22:17:57,881 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-22 22:17:57,907 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 22:17:57,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 22:17:57,908 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 22:17:57,908 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 22:17:57,909 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 22:17:57,909 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 22:17:57,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 22:17:57,910 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 22:17:57,910 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 22:17:57,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 22:17:57,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 22:17:57,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 22:17:57,911 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 22:17:57,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 22:17:57,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 22:17:57,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 22:17:57,912 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 22:17:57,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 22:17:57,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 22:17:57,913 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 22:17:57,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 22:17:57,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 22:17:57,914 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 22:17:57,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 22:17:57,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 22:17:57,914 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 22:17:57,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 22:17:57,915 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 22:17:57,915 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 22:17:57,915 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 22:17:57,915 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f87ca444cebdd8343e0a486129ff23acad574c7cfb073abcacffd6c901ccf3af [2022-07-22 22:17:58,153 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 22:17:58,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 22:17:58,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 22:17:58,178 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 22:17:58,178 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 22:17:58,180 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i [2022-07-22 22:17:58,236 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79608c425/56689b2fba2e462589635257d7f41645/FLAG5e3957481 [2022-07-22 22:17:58,911 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 22:17:58,912 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_c_str_harness.i [2022-07-22 22:17:58,944 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79608c425/56689b2fba2e462589635257d7f41645/FLAG5e3957481 [2022-07-22 22:17:59,206 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79608c425/56689b2fba2e462589635257d7f41645 [2022-07-22 22:17:59,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 22:17:59,209 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 22:17:59,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 22:17:59,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 22:17:59,214 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 22:17:59,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:17:59" (1/1) ... [2022-07-22 22:17:59,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12335aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:17:59, skipping insertion in model container [2022-07-22 22:17:59,215 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:17:59" (1/1) ... [2022-07-22 22:17:59,220 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 22:17:59,314 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 22:17:59,460 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_byte_cursor_eq_c_str_harness.i[4498,4511] [2022-07-22 22:17:59,465 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_byte_cursor_eq_c_str_harness.i[4558,4571] [2022-07-22 22:18:00,043 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:18:00,044 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:18:00,045 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:18:00,045 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:18:00,046 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:18:00,056 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:18:00,057 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:18:00,058 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:18:00,059 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:18:00,277 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-22 22:18:00,278 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-22 22:18:00,279 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-22 22:18:00,280 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-22 22:18:00,281 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-22 22:18:00,282 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-22 22:18:00,283 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-22 22:18:00,283 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-22 22:18:00,284 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-22 22:18:00,284 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-22 22:18:00,403 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-22 22:18:00,540 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:18:00,541 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:18:00,607 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 22:18:00,652 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 22:18:00,673 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_byte_cursor_eq_c_str_harness.i[4498,4511] [2022-07-22 22:18:00,674 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_byte_cursor_eq_c_str_harness.i[4558,4571] [2022-07-22 22:18:00,708 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:18:00,709 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:18:00,710 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:18:00,710 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:18:00,711 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:18:00,715 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:18:00,716 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:18:00,716 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:18:00,716 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:18:00,746 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-22 22:18:00,746 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-22 22:18:00,749 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-22 22:18:00,749 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-22 22:18:00,750 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-22 22:18:00,750 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-22 22:18:00,751 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-22 22:18:00,751 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-22 22:18:00,751 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-22 22:18:00,752 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-22 22:18:00,772 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-22 22:18:00,844 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:18:00,845 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:18:00,869 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 22:18:01,097 INFO L208 MainTranslator]: Completed translation [2022-07-22 22:18:01,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:18:01 WrapperNode [2022-07-22 22:18:01,098 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 22:18:01,099 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 22:18:01,099 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 22:18:01,099 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 22:18:01,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:18:01" (1/1) ... [2022-07-22 22:18:01,229 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:18:01" (1/1) ... [2022-07-22 22:18:01,302 INFO L137 Inliner]: procedures = 691, calls = 2629, calls flagged for inlining = 63, calls inlined = 9, statements flattened = 863 [2022-07-22 22:18:01,303 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 22:18:01,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 22:18:01,304 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 22:18:01,304 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 22:18:01,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:18:01" (1/1) ... [2022-07-22 22:18:01,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:18:01" (1/1) ... [2022-07-22 22:18:01,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:18:01" (1/1) ... [2022-07-22 22:18:01,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:18:01" (1/1) ... [2022-07-22 22:18:01,368 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:18:01" (1/1) ... [2022-07-22 22:18:01,382 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:18:01" (1/1) ... [2022-07-22 22:18:01,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:18:01" (1/1) ... [2022-07-22 22:18:01,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 22:18:01,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 22:18:01,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 22:18:01,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 22:18:01,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:18:01" (1/1) ... [2022-07-22 22:18:01,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 22:18:01,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:18:01,436 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) [2022-07-22 22:18:01,463 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 [2022-07-22 22:18:01,482 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2022-07-22 22:18:01,483 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2022-07-22 22:18:01,483 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-07-22 22:18:01,483 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-07-22 22:18:01,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 22:18:01,484 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-07-22 22:18:01,484 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-07-22 22:18:01,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 22:18:01,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-22 22:18:01,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-22 22:18:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 22:18:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 22:18:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2022-07-22 22:18:01,486 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2022-07-22 22:18:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-22 22:18:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 22:18:01,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 22:18:01,487 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-07-22 22:18:01,487 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-07-22 22:18:01,487 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-07-22 22:18:01,487 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-07-22 22:18:01,487 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-22 22:18:01,487 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-22 22:18:01,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 22:18:01,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-22 22:18:01,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-22 22:18:01,488 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-07-22 22:18:01,489 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-07-22 22:18:01,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 22:18:01,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 22:18:01,750 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 22:18:01,752 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 22:18:02,785 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 22:18:02,792 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 22:18:02,792 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 22:18:02,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 10:18:02 BoogieIcfgContainer [2022-07-22 22:18:02,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 22:18:02,797 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 22:18:02,797 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 22:18:02,800 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 22:18:02,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 10:17:59" (1/3) ... [2022-07-22 22:18:02,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be3f94b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 10:18:02, skipping insertion in model container [2022-07-22 22:18:02,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:18:01" (2/3) ... [2022-07-22 22:18:02,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be3f94b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 10:18:02, skipping insertion in model container [2022-07-22 22:18:02,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 10:18:02" (3/3) ... [2022-07-22 22:18:02,802 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_eq_c_str_harness.i [2022-07-22 22:18:02,814 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 22:18:02,814 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 22:18:02,874 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 22:18:02,879 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@1a489d74, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2d084eee [2022-07-22 22:18:02,879 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 22:18:02,883 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 81 states have (on average 1.2592592592592593) internal successors, (102), 83 states have internal predecessors, (102), 31 states have call successors, (31), 9 states have call predecessors, (31), 9 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-07-22 22:18:02,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-22 22:18:02,893 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:18:02,894 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:18:02,894 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:18:02,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:18:02,898 INFO L85 PathProgramCache]: Analyzing trace with hash -32550495, now seen corresponding path program 1 times [2022-07-22 22:18:02,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:18:02,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902562618] [2022-07-22 22:18:02,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:18:02,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:18:03,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:03,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:18:03,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:03,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:18:03,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:03,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:18:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:03,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:18:03,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:03,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 22:18:03,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:03,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-22 22:18:03,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:03,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-22 22:18:03,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:03,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 22:18:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:03,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 22:18:03,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:03,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 22:18:03,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:03,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-22 22:18:03,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:03,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-22 22:18:03,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:03,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 22:18:03,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:03,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-22 22:18:03,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:03,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-22 22:18:03,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:03,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:18:03,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:03,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 22:18:03,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:03,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-22 22:18:03,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:03,691 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2022-07-22 22:18:03,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:18:03,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902562618] [2022-07-22 22:18:03,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902562618] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:18:03,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:18:03,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 22:18:03,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607623515] [2022-07-22 22:18:03,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:18:03,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 22:18:03,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:18:03,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 22:18:03,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 22:18:03,729 INFO L87 Difference]: Start difference. First operand has 123 states, 81 states have (on average 1.2592592592592593) internal successors, (102), 83 states have internal predecessors, (102), 31 states have call successors, (31), 9 states have call predecessors, (31), 9 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-22 22:18:04,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:18:04,098 INFO L93 Difference]: Finished difference Result 243 states and 348 transitions. [2022-07-22 22:18:04,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 22:18:04,101 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 116 [2022-07-22 22:18:04,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:18:04,109 INFO L225 Difference]: With dead ends: 243 [2022-07-22 22:18:04,109 INFO L226 Difference]: Without dead ends: 120 [2022-07-22 22:18:04,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 22:18:04,115 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 103 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 22:18:04,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 218 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 22:18:04,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-07-22 22:18:04,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 118. [2022-07-22 22:18:04,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 77 states have (on average 1.2207792207792207) internal successors, (94), 78 states have internal predecessors, (94), 31 states have call successors, (31), 9 states have call predecessors, (31), 9 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-07-22 22:18:04,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 155 transitions. [2022-07-22 22:18:04,155 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 155 transitions. Word has length 116 [2022-07-22 22:18:04,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:18:04,156 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 155 transitions. [2022-07-22 22:18:04,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-22 22:18:04,156 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 155 transitions. [2022-07-22 22:18:04,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-22 22:18:04,159 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:18:04,159 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:18:04,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 22:18:04,160 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:18:04,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:18:04,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1139488593, now seen corresponding path program 1 times [2022-07-22 22:18:04,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:18:04,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378361579] [2022-07-22 22:18:04,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:18:04,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:18:04,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:04,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:18:04,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:04,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:18:04,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:04,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:18:04,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:04,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:18:04,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:04,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 22:18:04,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:04,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-22 22:18:04,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:04,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-22 22:18:04,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:04,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 22:18:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:04,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 22:18:04,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:04,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 22:18:04,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:04,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-22 22:18:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:04,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-22 22:18:04,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:04,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 22:18:04,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:04,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-22 22:18:04,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:04,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-22 22:18:04,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:04,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:18:04,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:04,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 22:18:04,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:04,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-22 22:18:04,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:04,568 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-07-22 22:18:04,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:18:04,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378361579] [2022-07-22 22:18:04,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378361579] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:18:04,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543056891] [2022-07-22 22:18:04,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:18:04,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:18:04,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:18:04,575 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) [2022-07-22 22:18:04,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 22:18:05,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:05,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 2650 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 22:18:05,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:18:05,248 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-07-22 22:18:05,248 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:18:05,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543056891] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:18:05,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:18:05,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2022-07-22 22:18:05,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327703049] [2022-07-22 22:18:05,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:18:05,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 22:18:05,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:18:05,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 22:18:05,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-22 22:18:05,257 INFO L87 Difference]: Start difference. First operand 118 states and 155 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-22 22:18:05,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:18:05,442 INFO L93 Difference]: Finished difference Result 211 states and 280 transitions. [2022-07-22 22:18:05,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 22:18:05,443 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 116 [2022-07-22 22:18:05,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:18:05,448 INFO L225 Difference]: With dead ends: 211 [2022-07-22 22:18:05,448 INFO L226 Difference]: Without dead ends: 121 [2022-07-22 22:18:05,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-07-22 22:18:05,458 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 174 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 22:18:05,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 311 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 22:18:05,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-07-22 22:18:05,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2022-07-22 22:18:05,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 79 states have (on average 1.2151898734177216) internal successors, (96), 81 states have internal predecessors, (96), 31 states have call successors, (31), 9 states have call predecessors, (31), 10 states have return successors, (32), 30 states have call predecessors, (32), 30 states have call successors, (32) [2022-07-22 22:18:05,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 159 transitions. [2022-07-22 22:18:05,483 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 159 transitions. Word has length 116 [2022-07-22 22:18:05,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:18:05,485 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 159 transitions. [2022-07-22 22:18:05,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-22 22:18:05,485 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 159 transitions. [2022-07-22 22:18:05,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-22 22:18:05,494 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:18:05,494 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:18:05,522 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-22 22:18:05,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:18:05,720 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:18:05,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:18:05,720 INFO L85 PathProgramCache]: Analyzing trace with hash -787565290, now seen corresponding path program 1 times [2022-07-22 22:18:05,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:18:05,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894533215] [2022-07-22 22:18:05,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:18:05,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:18:05,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:05,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:18:05,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:05,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:18:05,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:05,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:18:05,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:05,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:18:05,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:05,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 22:18:05,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:05,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-22 22:18:05,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:05,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-22 22:18:05,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:05,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 22:18:05,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:05,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 22:18:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:05,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-22 22:18:05,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:06,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 22:18:06,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:06,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-22 22:18:06,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:06,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-22 22:18:06,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:06,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-22 22:18:06,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:06,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-22 22:18:06,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:06,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:18:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:06,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 22:18:06,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:06,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-22 22:18:06,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:06,113 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-07-22 22:18:06,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:18:06,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894533215] [2022-07-22 22:18:06,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894533215] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:18:06,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709414343] [2022-07-22 22:18:06,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:18:06,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:18:06,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:18:06,115 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) [2022-07-22 22:18:06,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 22:18:06,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:06,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 2655 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-22 22:18:06,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:18:06,704 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-07-22 22:18:06,704 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:18:06,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [709414343] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:18:06,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:18:06,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2022-07-22 22:18:06,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917594824] [2022-07-22 22:18:06,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:18:06,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 22:18:06,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:18:06,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 22:18:06,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-07-22 22:18:06,709 INFO L87 Difference]: Start difference. First operand 121 states and 159 transitions. Second operand has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-07-22 22:18:06,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:18:06,905 INFO L93 Difference]: Finished difference Result 198 states and 259 transitions. [2022-07-22 22:18:06,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 22:18:06,906 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 118 [2022-07-22 22:18:06,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:18:06,908 INFO L225 Difference]: With dead ends: 198 [2022-07-22 22:18:06,908 INFO L226 Difference]: Without dead ends: 118 [2022-07-22 22:18:06,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2022-07-22 22:18:06,918 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 191 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 22:18:06,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 502 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 22:18:06,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-07-22 22:18:06,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2022-07-22 22:18:06,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 77 states have (on average 1.2077922077922079) internal successors, (93), 78 states have internal predecessors, (93), 31 states have call successors, (31), 9 states have call predecessors, (31), 9 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-07-22 22:18:06,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 154 transitions. [2022-07-22 22:18:06,935 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 154 transitions. Word has length 118 [2022-07-22 22:18:06,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:18:06,936 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 154 transitions. [2022-07-22 22:18:06,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-07-22 22:18:06,936 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 154 transitions. [2022-07-22 22:18:06,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-22 22:18:06,937 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:18:06,938 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:18:06,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-22 22:18:07,150 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,SelfDestructingSolverStorable2 [2022-07-22 22:18:07,151 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:18:07,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:18:07,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1485450464, now seen corresponding path program 1 times [2022-07-22 22:18:07,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:18:07,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015817166] [2022-07-22 22:18:07,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:18:07,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:18:07,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:07,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:18:07,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:07,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:18:07,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:07,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:18:07,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:07,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:18:07,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:07,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 22:18:07,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:07,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-22 22:18:07,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:07,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-22 22:18:07,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:07,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 22:18:07,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:07,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 22:18:07,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:07,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-22 22:18:07,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:07,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 22:18:07,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:07,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-22 22:18:07,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:07,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-22 22:18:07,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:07,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-22 22:18:07,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:07,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-22 22:18:07,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:07,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:18:07,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:07,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 22:18:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:07,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-22 22:18:07,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:07,669 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-07-22 22:18:07,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:18:07,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015817166] [2022-07-22 22:18:07,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015817166] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:18:07,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:18:07,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-22 22:18:07,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821236793] [2022-07-22 22:18:07,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:18:07,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-22 22:18:07,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:18:07,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-22 22:18:07,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-22 22:18:07,673 INFO L87 Difference]: Start difference. First operand 118 states and 154 transitions. Second operand has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2022-07-22 22:18:08,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:18:08,274 INFO L93 Difference]: Finished difference Result 132 states and 172 transitions. [2022-07-22 22:18:08,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-22 22:18:08,275 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) Word has length 122 [2022-07-22 22:18:08,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:18:08,277 INFO L225 Difference]: With dead ends: 132 [2022-07-22 22:18:08,277 INFO L226 Difference]: Without dead ends: 130 [2022-07-22 22:18:08,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-07-22 22:18:08,278 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 125 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 22:18:08,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 582 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 22:18:08,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-07-22 22:18:08,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 127. [2022-07-22 22:18:08,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 83 states have (on average 1.1927710843373494) internal successors, (99), 85 states have internal predecessors, (99), 32 states have call successors, (32), 10 states have call predecessors, (32), 11 states have return successors, (35), 31 states have call predecessors, (35), 31 states have call successors, (35) [2022-07-22 22:18:08,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 166 transitions. [2022-07-22 22:18:08,298 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 166 transitions. Word has length 122 [2022-07-22 22:18:08,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:18:08,299 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 166 transitions. [2022-07-22 22:18:08,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2022-07-22 22:18:08,300 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 166 transitions. [2022-07-22 22:18:08,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-07-22 22:18:08,303 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:18:08,303 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:18:08,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 22:18:08,303 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:18:08,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:18:08,304 INFO L85 PathProgramCache]: Analyzing trace with hash 52780584, now seen corresponding path program 1 times [2022-07-22 22:18:08,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:18:08,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908671099] [2022-07-22 22:18:08,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:18:08,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:18:08,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:08,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:18:08,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:08,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:18:08,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:08,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:18:08,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:08,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:18:08,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:08,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 22:18:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:08,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-22 22:18:08,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:08,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-22 22:18:08,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:08,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 22:18:08,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:08,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 22:18:08,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:08,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-22 22:18:08,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:08,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 22:18:08,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:08,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-22 22:18:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:08,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-22 22:18:08,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:08,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-22 22:18:08,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:08,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-22 22:18:08,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:08,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:18:08,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:08,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 22:18:08,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:08,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-22 22:18:08,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:09,023 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2022-07-22 22:18:09,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:18:09,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908671099] [2022-07-22 22:18:09,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908671099] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:18:09,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703065939] [2022-07-22 22:18:09,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:18:09,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:18:09,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:18:09,028 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) [2022-07-22 22:18:09,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 22:18:09,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:09,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 2677 conjuncts, 51 conjunts are in the unsatisfiable core [2022-07-22 22:18:09,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:18:09,552 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 [2022-07-22 22:18:10,658 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 90 proven. 10 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-07-22 22:18:10,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 22:18:11,240 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-07-22 22:18:11,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703065939] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 22:18:11,241 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 22:18:11,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 11] total 30 [2022-07-22 22:18:11,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035189453] [2022-07-22 22:18:11,241 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 22:18:11,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-07-22 22:18:11,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:18:11,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-07-22 22:18:11,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=765, Unknown=0, NotChecked=0, Total=870 [2022-07-22 22:18:11,243 INFO L87 Difference]: Start difference. First operand 127 states and 166 transitions. Second operand has 30 states, 28 states have (on average 4.285714285714286) internal successors, (120), 28 states have internal predecessors, (120), 11 states have call successors, (39), 7 states have call predecessors, (39), 8 states have return successors, (37), 9 states have call predecessors, (37), 10 states have call successors, (37) [2022-07-22 22:18:13,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:18:13,748 INFO L93 Difference]: Finished difference Result 347 states and 476 transitions. [2022-07-22 22:18:13,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-07-22 22:18:13,749 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 28 states have (on average 4.285714285714286) internal successors, (120), 28 states have internal predecessors, (120), 11 states have call successors, (39), 7 states have call predecessors, (39), 8 states have return successors, (37), 9 states have call predecessors, (37), 10 states have call successors, (37) Word has length 126 [2022-07-22 22:18:13,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:18:13,752 INFO L225 Difference]: With dead ends: 347 [2022-07-22 22:18:13,752 INFO L226 Difference]: Without dead ends: 287 [2022-07-22 22:18:13,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 262 SyntacticMatches, 17 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 864 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=386, Invalid=2266, Unknown=0, NotChecked=0, Total=2652 [2022-07-22 22:18:13,754 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 307 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 1964 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 2744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 1964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 616 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-22 22:18:13,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 1556 Invalid, 2744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 1964 Invalid, 0 Unknown, 616 Unchecked, 1.6s Time] [2022-07-22 22:18:13,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-07-22 22:18:13,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 236. [2022-07-22 22:18:13,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 150 states have (on average 1.2) internal successors, (180), 154 states have internal predecessors, (180), 65 states have call successors, (65), 17 states have call predecessors, (65), 20 states have return successors, (79), 64 states have call predecessors, (79), 64 states have call successors, (79) [2022-07-22 22:18:13,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 324 transitions. [2022-07-22 22:18:13,781 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 324 transitions. Word has length 126 [2022-07-22 22:18:13,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:18:13,782 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 324 transitions. [2022-07-22 22:18:13,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 28 states have (on average 4.285714285714286) internal successors, (120), 28 states have internal predecessors, (120), 11 states have call successors, (39), 7 states have call predecessors, (39), 8 states have return successors, (37), 9 states have call predecessors, (37), 10 states have call successors, (37) [2022-07-22 22:18:13,782 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 324 transitions. [2022-07-22 22:18:13,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-07-22 22:18:13,784 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:18:13,784 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:18:13,805 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-07-22 22:18:13,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:18:13,991 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:18:13,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:18:13,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1659869525, now seen corresponding path program 1 times [2022-07-22 22:18:13,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:18:13,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249950203] [2022-07-22 22:18:13,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:18:13,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:18:14,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:14,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:18:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:14,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:18:14,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:14,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:18:14,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:14,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:18:14,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:14,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 22:18:14,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:14,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-22 22:18:14,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:14,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-22 22:18:14,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:14,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 22:18:14,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:14,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 22:18:14,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:14,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-22 22:18:14,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:14,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 22:18:14,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:14,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 22:18:14,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:14,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-22 22:18:14,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:14,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-22 22:18:14,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:14,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-22 22:18:14,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:14,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-22 22:18:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:14,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:18:14,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:14,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 22:18:14,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:14,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-22 22:18:14,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:14,616 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2022-07-22 22:18:14,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:18:14,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249950203] [2022-07-22 22:18:14,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249950203] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:18:14,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:18:14,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-22 22:18:14,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109812808] [2022-07-22 22:18:14,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:18:14,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-22 22:18:14,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:18:14,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-22 22:18:14,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-22 22:18:14,618 INFO L87 Difference]: Start difference. First operand 236 states and 324 transitions. Second operand has 14 states, 13 states have (on average 4.538461538461538) internal successors, (59), 12 states have internal predecessors, (59), 5 states have call successors, (20), 4 states have call predecessors, (20), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2022-07-22 22:18:15,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:18:15,774 INFO L93 Difference]: Finished difference Result 380 states and 534 transitions. [2022-07-22 22:18:15,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 22:18:15,774 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.538461538461538) internal successors, (59), 12 states have internal predecessors, (59), 5 states have call successors, (20), 4 states have call predecessors, (20), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 133 [2022-07-22 22:18:15,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:18:15,777 INFO L225 Difference]: With dead ends: 380 [2022-07-22 22:18:15,777 INFO L226 Difference]: Without dead ends: 303 [2022-07-22 22:18:15,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2022-07-22 22:18:15,778 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 176 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 1192 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-22 22:18:15,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 618 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1192 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-22 22:18:15,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-07-22 22:18:15,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 244. [2022-07-22 22:18:15,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 155 states have (on average 1.2) internal successors, (186), 160 states have internal predecessors, (186), 67 states have call successors, (67), 17 states have call predecessors, (67), 21 states have return successors, (84), 66 states have call predecessors, (84), 66 states have call successors, (84) [2022-07-22 22:18:15,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 337 transitions. [2022-07-22 22:18:15,805 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 337 transitions. Word has length 133 [2022-07-22 22:18:15,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:18:15,806 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 337 transitions. [2022-07-22 22:18:15,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.538461538461538) internal successors, (59), 12 states have internal predecessors, (59), 5 states have call successors, (20), 4 states have call predecessors, (20), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2022-07-22 22:18:15,806 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 337 transitions. [2022-07-22 22:18:15,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-07-22 22:18:15,808 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:18:15,808 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:18:15,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 22:18:15,809 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:18:15,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:18:15,809 INFO L85 PathProgramCache]: Analyzing trace with hash -801216483, now seen corresponding path program 1 times [2022-07-22 22:18:15,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:18:15,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674159662] [2022-07-22 22:18:15,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:18:15,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:18:15,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:15,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:18:15,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:15,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:18:15,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:16,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:18:16,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:16,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:18:16,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:16,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 22:18:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:16,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-22 22:18:16,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:16,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-22 22:18:16,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:16,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 22:18:16,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:16,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 22:18:16,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:16,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-22 22:18:16,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:16,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-22 22:18:16,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:16,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 22:18:16,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:16,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-22 22:18:16,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:16,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-22 22:18:16,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:16,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-22 22:18:16,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:16,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:18:16,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:16,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 22:18:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:16,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-22 22:18:16,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:16,161 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 12 proven. 21 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2022-07-22 22:18:16,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:18:16,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674159662] [2022-07-22 22:18:16,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674159662] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:18:16,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102623271] [2022-07-22 22:18:16,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:18:16,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:18:16,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:18:16,164 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) [2022-07-22 22:18:16,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-22 22:18:16,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:16,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 2693 conjuncts, 24 conjunts are in the unsatisfiable core [2022-07-22 22:18:16,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:18:16,700 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-07-22 22:18:16,700 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:18:16,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102623271] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:18:16,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:18:16,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 12 [2022-07-22 22:18:16,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671704164] [2022-07-22 22:18:16,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:18:16,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 22:18:16,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:18:16,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 22:18:16,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-07-22 22:18:16,708 INFO L87 Difference]: Start difference. First operand 244 states and 337 transitions. Second operand has 9 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-22 22:18:16,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:18:16,906 INFO L93 Difference]: Finished difference Result 364 states and 497 transitions. [2022-07-22 22:18:16,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 22:18:16,907 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 130 [2022-07-22 22:18:16,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:18:16,909 INFO L225 Difference]: With dead ends: 364 [2022-07-22 22:18:16,909 INFO L226 Difference]: Without dead ends: 249 [2022-07-22 22:18:16,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 162 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2022-07-22 22:18:16,911 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 12 mSDsluCounter, 964 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1111 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 22:18:16,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1111 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 22:18:16,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-07-22 22:18:16,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2022-07-22 22:18:16,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 159 states have (on average 1.1949685534591195) internal successors, (190), 165 states have internal predecessors, (190), 67 states have call successors, (67), 17 states have call predecessors, (67), 22 states have return successors, (91), 66 states have call predecessors, (91), 66 states have call successors, (91) [2022-07-22 22:18:16,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 348 transitions. [2022-07-22 22:18:16,935 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 348 transitions. Word has length 130 [2022-07-22 22:18:16,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:18:16,936 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 348 transitions. [2022-07-22 22:18:16,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-22 22:18:16,936 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 348 transitions. [2022-07-22 22:18:16,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-07-22 22:18:16,938 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:18:16,939 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:18:16,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-22 22:18:17,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:18:17,148 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:18:17,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:18:17,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1035068520, now seen corresponding path program 1 times [2022-07-22 22:18:17,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:18:17,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926692655] [2022-07-22 22:18:17,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:18:17,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:18:17,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:17,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:18:17,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:17,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:18:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:17,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:18:17,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:17,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:18:17,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:17,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 22:18:17,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:17,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-22 22:18:17,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:17,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-22 22:18:17,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:17,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 22:18:17,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:17,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 22:18:17,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:17,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-22 22:18:17,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:17,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 22:18:17,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:17,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 22:18:17,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:17,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-22 22:18:17,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:17,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-22 22:18:17,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:17,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-22 22:18:17,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:17,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-22 22:18:17,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:17,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:18:17,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:17,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 22:18:17,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:17,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-22 22:18:17,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:17,617 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2022-07-22 22:18:17,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:18:17,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926692655] [2022-07-22 22:18:17,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926692655] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:18:17,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470397545] [2022-07-22 22:18:17,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:18:17,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:18:17,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:18:17,619 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) [2022-07-22 22:18:17,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-22 22:18:18,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:18,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 2726 conjuncts, 76 conjunts are in the unsatisfiable core [2022-07-22 22:18:18,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:18:18,140 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 [2022-07-22 22:18:19,650 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 11 treesize of output 7 [2022-07-22 22:18:21,659 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_310 Int) (|save_byte_from_array_~storage#1.base| Int) (v_ArrVal_308 Int)) (= (store |c_old(#memory_int)| |save_byte_from_array_~storage#1.base| (store (store (select |c_old(#memory_int)| |save_byte_from_array_~storage#1.base|) |c_save_byte_from_array_#in~storage#1.offset| v_ArrVal_308) (+ |c_save_byte_from_array_#in~storage#1.offset| 8) v_ArrVal_310)) |c_#memory_int|)) is different from true [2022-07-22 22:18:21,680 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-07-22 22:18:21,680 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 37 [2022-07-22 22:18:21,952 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2022-07-22 22:18:21,994 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 71 proven. 28 refuted. 0 times theorem prover too weak. 104 trivial. 2 not checked. [2022-07-22 22:18:21,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 22:18:22,339 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2022-07-22 22:18:22,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470397545] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 22:18:22,340 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 22:18:22,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 20, 9] total 27 [2022-07-22 22:18:22,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081170586] [2022-07-22 22:18:22,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 22:18:22,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-07-22 22:18:22,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:18:22,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-07-22 22:18:22,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=579, Unknown=2, NotChecked=48, Total=702 [2022-07-22 22:18:22,341 INFO L87 Difference]: Start difference. First operand 249 states and 348 transitions. Second operand has 27 states, 23 states have (on average 4.739130434782608) internal successors, (109), 25 states have internal predecessors, (109), 14 states have call successors, (40), 6 states have call predecessors, (40), 7 states have return successors, (36), 10 states have call predecessors, (36), 14 states have call successors, (36) [2022-07-22 22:18:27,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:18:27,330 INFO L93 Difference]: Finished difference Result 661 states and 978 transitions. [2022-07-22 22:18:27,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-07-22 22:18:27,330 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 23 states have (on average 4.739130434782608) internal successors, (109), 25 states have internal predecessors, (109), 14 states have call successors, (40), 6 states have call predecessors, (40), 7 states have return successors, (36), 10 states have call predecessors, (36), 14 states have call successors, (36) Word has length 133 [2022-07-22 22:18:27,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:18:27,334 INFO L225 Difference]: With dead ends: 661 [2022-07-22 22:18:27,334 INFO L226 Difference]: Without dead ends: 491 [2022-07-22 22:18:27,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 282 SyntacticMatches, 12 SemanticMatches, 50 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=298, Invalid=2251, Unknown=5, NotChecked=98, Total=2652 [2022-07-22 22:18:27,336 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 500 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 3060 mSolverCounterSat, 429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 1288 SdHoareTripleChecker+Invalid, 4380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 429 IncrementalHoareTripleChecker+Valid, 3060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 891 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-22 22:18:27,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 1288 Invalid, 4380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [429 Valid, 3060 Invalid, 0 Unknown, 891 Unchecked, 2.4s Time] [2022-07-22 22:18:27,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-07-22 22:18:27,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 269. [2022-07-22 22:18:27,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 168 states have (on average 1.1726190476190477) internal successors, (197), 172 states have internal predecessors, (197), 78 states have call successors, (78), 19 states have call predecessors, (78), 22 states have return successors, (102), 77 states have call predecessors, (102), 77 states have call successors, (102) [2022-07-22 22:18:27,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 377 transitions. [2022-07-22 22:18:27,368 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 377 transitions. Word has length 133 [2022-07-22 22:18:27,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:18:27,369 INFO L495 AbstractCegarLoop]: Abstraction has 269 states and 377 transitions. [2022-07-22 22:18:27,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 23 states have (on average 4.739130434782608) internal successors, (109), 25 states have internal predecessors, (109), 14 states have call successors, (40), 6 states have call predecessors, (40), 7 states have return successors, (36), 10 states have call predecessors, (36), 14 states have call successors, (36) [2022-07-22 22:18:27,369 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 377 transitions. [2022-07-22 22:18:27,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-22 22:18:27,371 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:18:27,372 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:18:27,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-22 22:18:27,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:18:27,600 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:18:27,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:18:27,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1482930720, now seen corresponding path program 2 times [2022-07-22 22:18:27,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:18:27,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917921081] [2022-07-22 22:18:27,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:18:27,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:18:27,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:27,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:18:27,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:27,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:18:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:27,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:18:27,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:27,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:18:27,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:28,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 22:18:28,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:28,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-22 22:18:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:28,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-22 22:18:28,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:28,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 22:18:28,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:28,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 22:18:28,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:28,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-22 22:18:28,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:28,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 22:18:28,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:28,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 22:18:28,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:28,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-22 22:18:28,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:28,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-22 22:18:28,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:28,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-22 22:18:28,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:28,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-22 22:18:28,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:28,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:18:28,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:28,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 22:18:28,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:28,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-22 22:18:28,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:28,486 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2022-07-22 22:18:28,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:18:28,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917921081] [2022-07-22 22:18:28,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917921081] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:18:28,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1878262619] [2022-07-22 22:18:28,487 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 22:18:28,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:18:28,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:18:28,488 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) [2022-07-22 22:18:28,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-22 22:18:29,302 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 22:18:29,302 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 22:18:29,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 2738 conjuncts, 67 conjunts are in the unsatisfiable core [2022-07-22 22:18:29,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:18:29,330 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 [2022-07-22 22:18:29,561 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-07-22 22:18:29,561 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-07-22 22:18:30,177 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-07-22 22:18:30,177 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-07-22 22:18:30,229 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2022-07-22 22:18:30,343 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-07-22 22:18:30,343 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 [2022-07-22 22:18:30,448 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 8 treesize of output 1 [2022-07-22 22:18:30,460 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_405 (Array Int Int))) (= (store |c_old(#memory_int)| |c_save_byte_from_array_#in~storage#1.base| v_ArrVal_405) |c_#memory_int|)) is different from true [2022-07-22 22:18:30,468 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-07-22 22:18:31,303 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 66 proven. 100 refuted. 0 times theorem prover too weak. 41 trivial. 2 not checked. [2022-07-22 22:18:31,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 22:18:31,533 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_409 (Array Int Int))) (let ((.cse0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_aws_byte_cursor_eq_c_str_harness_~#old_byte_from_str~0#1.base| v_ArrVal_409) |c_ULTIMATE.start_aws_byte_cursor_eq_c_str_harness_~#cur~3#1.base|) |c_ULTIMATE.start_aws_byte_cursor_eq_c_str_harness_~#cur~3#1.offset|))) (<= .cse0 (* 18446744073709551616 (div .cse0 18446744073709551616))))) is different from false [2022-07-22 22:18:31,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1878262619] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:18:31,534 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 22:18:31,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 24] total 45 [2022-07-22 22:18:31,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261373397] [2022-07-22 22:18:31,535 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 22:18:31,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-07-22 22:18:31,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:18:31,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-07-22 22:18:31,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=1990, Unknown=2, NotChecked=182, Total=2352 [2022-07-22 22:18:31,537 INFO L87 Difference]: Start difference. First operand 269 states and 377 transitions. Second operand has 45 states, 40 states have (on average 3.3) internal successors, (132), 40 states have internal predecessors, (132), 18 states have call successors, (37), 10 states have call predecessors, (37), 14 states have return successors, (36), 15 states have call predecessors, (36), 18 states have call successors, (36) [2022-07-22 22:18:35,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:18:35,560 INFO L93 Difference]: Finished difference Result 739 states and 1082 transitions. [2022-07-22 22:18:35,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-07-22 22:18:35,561 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 40 states have (on average 3.3) internal successors, (132), 40 states have internal predecessors, (132), 18 states have call successors, (37), 10 states have call predecessors, (37), 14 states have return successors, (36), 15 states have call predecessors, (36), 18 states have call successors, (36) Word has length 137 [2022-07-22 22:18:35,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:18:35,564 INFO L225 Difference]: With dead ends: 739 [2022-07-22 22:18:35,565 INFO L226 Difference]: Without dead ends: 661 [2022-07-22 22:18:35,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 193 SyntacticMatches, 26 SemanticMatches, 85 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 2453 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=597, Invalid=6549, Unknown=2, NotChecked=334, Total=7482 [2022-07-22 22:18:35,567 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 707 mSDsluCounter, 1867 mSDsCounter, 0 mSdLazyCounter, 4135 mSolverCounterSat, 942 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 2062 SdHoareTripleChecker+Invalid, 8428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 942 IncrementalHoareTripleChecker+Valid, 4135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3351 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-22 22:18:35,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [754 Valid, 2062 Invalid, 8428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [942 Valid, 4135 Invalid, 0 Unknown, 3351 Unchecked, 2.8s Time] [2022-07-22 22:18:35,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2022-07-22 22:18:35,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 361. [2022-07-22 22:18:35,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 231 states have (on average 1.1688311688311688) internal successors, (270), 237 states have internal predecessors, (270), 96 states have call successors, (96), 29 states have call predecessors, (96), 33 states have return successors, (127), 94 states have call predecessors, (127), 95 states have call successors, (127) [2022-07-22 22:18:35,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 493 transitions. [2022-07-22 22:18:35,604 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 493 transitions. Word has length 137 [2022-07-22 22:18:35,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:18:35,605 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 493 transitions. [2022-07-22 22:18:35,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 40 states have (on average 3.3) internal successors, (132), 40 states have internal predecessors, (132), 18 states have call successors, (37), 10 states have call predecessors, (37), 14 states have return successors, (36), 15 states have call predecessors, (36), 18 states have call successors, (36) [2022-07-22 22:18:35,605 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 493 transitions. [2022-07-22 22:18:35,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-07-22 22:18:35,608 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:18:35,608 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:18:35,631 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-07-22 22:18:35,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:18:35,820 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:18:35,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:18:35,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1596672477, now seen corresponding path program 1 times [2022-07-22 22:18:35,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:18:35,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468421032] [2022-07-22 22:18:35,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:18:35,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:18:36,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:36,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:18:36,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:36,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:18:36,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:36,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:18:36,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:36,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:18:36,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:36,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 22:18:36,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:36,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-22 22:18:36,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:36,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-22 22:18:36,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:36,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 22:18:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:36,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 22:18:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:36,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-22 22:18:36,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:36,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 22:18:36,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:36,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-22 22:18:36,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:36,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-22 22:18:36,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:36,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-22 22:18:36,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:36,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-22 22:18:36,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:36,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:18:36,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:36,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 22:18:36,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:36,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-22 22:18:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:36,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-22 22:18:36,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:36,730 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-07-22 22:18:36,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:18:36,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468421032] [2022-07-22 22:18:36,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468421032] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:18:36,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958497114] [2022-07-22 22:18:36,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:18:36,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:18:36,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:18:36,732 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) [2022-07-22 22:18:36,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-22 22:18:37,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:18:37,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 2681 conjuncts, 72 conjunts are in the unsatisfiable core [2022-07-22 22:18:37,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:18:37,507 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 [2022-07-22 22:18:39,271 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2022-07-22 22:18:39,369 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 16 proven. 100 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-22 22:18:39,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 22:18:41,696 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 55 [2022-07-22 22:18:41,699 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 55 treesize of output 51 [2022-07-22 22:18:41,761 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 14 proven. 28 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2022-07-22 22:18:41,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958497114] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 22:18:41,761 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 22:18:41,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 30, 20] total 67 [2022-07-22 22:18:41,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300619542] [2022-07-22 22:18:41,762 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 22:18:41,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-07-22 22:18:41,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:18:41,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-07-22 22:18:41,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=282, Invalid=4140, Unknown=0, NotChecked=0, Total=4422 [2022-07-22 22:18:41,765 INFO L87 Difference]: Start difference. First operand 361 states and 493 transitions. Second operand has 67 states, 58 states have (on average 2.913793103448276) internal successors, (169), 56 states have internal predecessors, (169), 25 states have call successors, (57), 12 states have call predecessors, (57), 16 states have return successors, (54), 20 states have call predecessors, (54), 23 states have call successors, (54) [2022-07-22 22:18:41,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:18:41,770 INFO L93 Difference]: Finished difference Result 361 states and 493 transitions. [2022-07-22 22:18:41,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 22:18:41,770 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 58 states have (on average 2.913793103448276) internal successors, (169), 56 states have internal predecessors, (169), 25 states have call successors, (57), 12 states have call predecessors, (57), 16 states have return successors, (54), 20 states have call predecessors, (54), 23 states have call successors, (54) Word has length 130 [2022-07-22 22:18:41,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:18:41,771 INFO L225 Difference]: With dead ends: 361 [2022-07-22 22:18:41,771 INFO L226 Difference]: Without dead ends: 0 [2022-07-22 22:18:41,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 235 SyntacticMatches, 15 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1778 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=282, Invalid=4140, Unknown=0, NotChecked=0, Total=4422 [2022-07-22 22:18:41,774 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 22:18:41,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 22:18:41,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-22 22:18:41,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-22 22:18:41,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 22:18:41,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-22 22:18:41,776 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 130 [2022-07-22 22:18:41,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:18:41,776 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 22:18:41,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 58 states have (on average 2.913793103448276) internal successors, (169), 56 states have internal predecessors, (169), 25 states have call successors, (57), 12 states have call predecessors, (57), 16 states have return successors, (54), 20 states have call predecessors, (54), 23 states have call successors, (54) [2022-07-22 22:18:41,777 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-22 22:18:41,777 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-22 22:18:41,779 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 22:18:41,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-22 22:18:41,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:18:41,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-22 22:18:42,084 INFO L902 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6882 6887) the Hoare annotation is: true [2022-07-22 22:18:42,085 INFO L899 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6882 6887) no Hoare annotation was computed. [2022-07-22 22:18:42,085 INFO L899 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6882 6887) no Hoare annotation was computed. [2022-07-22 22:18:42,085 INFO L899 garLoopResultBuilder]: For program point L6883-1(lines 6883 6885) no Hoare annotation was computed. [2022-07-22 22:18:42,085 INFO L902 garLoopResultBuilder]: At program point L6883(lines 6883 6885) the Hoare annotation is: true [2022-07-22 22:18:42,085 INFO L899 garLoopResultBuilder]: For program point L7135(lines 7135 7139) no Hoare annotation was computed. [2022-07-22 22:18:42,085 INFO L899 garLoopResultBuilder]: For program point L7137-1(line 7137) no Hoare annotation was computed. [2022-07-22 22:18:42,086 INFO L899 garLoopResultBuilder]: For program point save_byte_from_arrayEXIT(lines 7134 7140) no Hoare annotation was computed. [2022-07-22 22:18:42,086 INFO L902 garLoopResultBuilder]: At program point L7137(line 7137) the Hoare annotation is: true [2022-07-22 22:18:42,086 INFO L899 garLoopResultBuilder]: For program point L7135-2(lines 7134 7140) no Hoare annotation was computed. [2022-07-22 22:18:42,086 INFO L902 garLoopResultBuilder]: At program point L263(line 263) the Hoare annotation is: true [2022-07-22 22:18:42,086 INFO L902 garLoopResultBuilder]: At program point save_byte_from_arrayENTRY(lines 7134 7140) the Hoare annotation is: true [2022-07-22 22:18:42,086 INFO L899 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2022-07-22 22:18:42,086 INFO L899 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2022-07-22 22:18:42,087 INFO L902 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2022-07-22 22:18:42,087 INFO L899 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2022-07-22 22:18:42,087 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2022-07-22 22:18:42,087 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2022-07-22 22:18:42,087 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2022-07-22 22:18:42,087 INFO L899 garLoopResultBuilder]: For program point L7772(lines 7772 7774) no Hoare annotation was computed. [2022-07-22 22:18:42,087 INFO L899 garLoopResultBuilder]: For program point aws_array_eq_c_strFINAL(lines 7767 7800) no Hoare annotation was computed. [2022-07-22 22:18:42,087 INFO L902 garLoopResultBuilder]: At program point L7769-1(line 7769) the Hoare annotation is: true [2022-07-22 22:18:42,087 INFO L902 garLoopResultBuilder]: At program point L7769(line 7769) the Hoare annotation is: true [2022-07-22 22:18:42,087 INFO L899 garLoopResultBuilder]: For program point L7792(lines 7792 7796) no Hoare annotation was computed. [2022-07-22 22:18:42,087 INFO L899 garLoopResultBuilder]: For program point L7786(lines 7786 7790) no Hoare annotation was computed. [2022-07-22 22:18:42,087 INFO L902 garLoopResultBuilder]: At program point aws_array_eq_c_strENTRY(lines 7767 7800) the Hoare annotation is: true [2022-07-22 22:18:42,087 INFO L899 garLoopResultBuilder]: For program point L7784-2(lines 7784 7797) no Hoare annotation was computed. [2022-07-22 22:18:42,087 INFO L899 garLoopResultBuilder]: For program point aws_array_eq_c_strEXIT(lines 7767 7800) no Hoare annotation was computed. [2022-07-22 22:18:42,088 INFO L899 garLoopResultBuilder]: For program point L7784-4(lines 7784 7797) no Hoare annotation was computed. [2022-07-22 22:18:42,088 INFO L902 garLoopResultBuilder]: At program point L7784-3(lines 7784 7797) the Hoare annotation is: true [2022-07-22 22:18:42,088 INFO L902 garLoopResultBuilder]: At program point L7130(line 7130) the Hoare annotation is: true [2022-07-22 22:18:42,088 INFO L899 garLoopResultBuilder]: For program point assert_byte_from_buffer_matchesEXIT(lines 7128 7132) no Hoare annotation was computed. [2022-07-22 22:18:42,088 INFO L902 garLoopResultBuilder]: At program point assert_byte_from_buffer_matchesENTRY(lines 7128 7132) the Hoare annotation is: true [2022-07-22 22:18:42,088 INFO L899 garLoopResultBuilder]: For program point L7129-2(lines 7128 7132) no Hoare annotation was computed. [2022-07-22 22:18:42,088 INFO L899 garLoopResultBuilder]: For program point L7129(lines 7129 7131) no Hoare annotation was computed. [2022-07-22 22:18:42,088 INFO L899 garLoopResultBuilder]: For program point L7130-1(line 7130) no Hoare annotation was computed. [2022-07-22 22:18:42,088 INFO L899 garLoopResultBuilder]: For program point L7395-5(line 7395) no Hoare annotation was computed. [2022-07-22 22:18:42,089 INFO L899 garLoopResultBuilder]: For program point L7395-4(line 7395) no Hoare annotation was computed. [2022-07-22 22:18:42,089 INFO L899 garLoopResultBuilder]: For program point L7395-2(line 7395) no Hoare annotation was computed. [2022-07-22 22:18:42,089 INFO L899 garLoopResultBuilder]: For program point L7395-8(line 7395) no Hoare annotation was computed. [2022-07-22 22:18:42,089 INFO L899 garLoopResultBuilder]: For program point L7395-6(line 7395) no Hoare annotation was computed. [2022-07-22 22:18:42,089 INFO L899 garLoopResultBuilder]: For program point L7395-11(line 7395) no Hoare annotation was computed. [2022-07-22 22:18:42,089 INFO L899 garLoopResultBuilder]: For program point L7395-10(line 7395) no Hoare annotation was computed. [2022-07-22 22:18:42,089 INFO L902 garLoopResultBuilder]: At program point aws_byte_cursor_is_validENTRY(lines 7392 7396) the Hoare annotation is: true [2022-07-22 22:18:42,090 INFO L899 garLoopResultBuilder]: For program point L7394(lines 7394 7395) no Hoare annotation was computed. [2022-07-22 22:18:42,090 INFO L899 garLoopResultBuilder]: For program point aws_byte_cursor_is_validEXIT(lines 7392 7396) no Hoare annotation was computed. [2022-07-22 22:18:42,090 INFO L899 garLoopResultBuilder]: For program point L7394-2(lines 7394 7395) no Hoare annotation was computed. [2022-07-22 22:18:42,090 INFO L899 garLoopResultBuilder]: For program point L7395(line 7395) no Hoare annotation was computed. [2022-07-22 22:18:42,090 INFO L899 garLoopResultBuilder]: For program point aws_byte_cursor_is_validFINAL(lines 7392 7396) no Hoare annotation was computed. [2022-07-22 22:18:42,090 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2022-07-22 22:18:42,090 INFO L902 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2022-07-22 22:18:42,090 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2022-07-22 22:18:42,091 INFO L895 garLoopResultBuilder]: At program point L8987(line 8987) the Hoare annotation is: false [2022-07-22 22:18:42,091 INFO L899 garLoopResultBuilder]: For program point L8987-1(line 8987) no Hoare annotation was computed. [2022-07-22 22:18:42,091 INFO L899 garLoopResultBuilder]: For program point L8995-2(lines 8967 9001) no Hoare annotation was computed. [2022-07-22 22:18:42,091 INFO L899 garLoopResultBuilder]: For program point L7864-1(lines 7864 7866) no Hoare annotation was computed. [2022-07-22 22:18:42,091 INFO L895 garLoopResultBuilder]: At program point L7864(lines 7864 7866) the Hoare annotation is: false [2022-07-22 22:18:42,091 INFO L899 garLoopResultBuilder]: For program point L6675-1(line 6675) no Hoare annotation was computed. [2022-07-22 22:18:42,091 INFO L895 garLoopResultBuilder]: At program point L6675(line 6675) the Hoare annotation is: false [2022-07-22 22:18:42,092 INFO L895 garLoopResultBuilder]: At program point L8996(line 8996) the Hoare annotation is: false [2022-07-22 22:18:42,092 INFO L899 garLoopResultBuilder]: For program point L8996-1(line 8996) no Hoare annotation was computed. [2022-07-22 22:18:42,092 INFO L899 garLoopResultBuilder]: For program point L8988(lines 8988 8990) no Hoare annotation was computed. [2022-07-22 22:18:42,092 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-22 22:18:42,092 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-22 22:18:42,092 INFO L895 garLoopResultBuilder]: At program point L8980(line 8980) the Hoare annotation is: false [2022-07-22 22:18:42,092 INFO L899 garLoopResultBuilder]: For program point L8980-1(line 8980) no Hoare annotation was computed. [2022-07-22 22:18:42,092 INFO L899 garLoopResultBuilder]: For program point L6825-1(line 6825) no Hoare annotation was computed. [2022-07-22 22:18:42,093 INFO L895 garLoopResultBuilder]: At program point L6825(line 6825) the Hoare annotation is: false [2022-07-22 22:18:42,093 INFO L895 garLoopResultBuilder]: At program point L7106(line 7106) the Hoare annotation is: false [2022-07-22 22:18:42,093 INFO L899 garLoopResultBuilder]: For program point L7106-1(line 7106) no Hoare annotation was computed. [2022-07-22 22:18:42,093 INFO L899 garLoopResultBuilder]: For program point L8981(line 8981) no Hoare annotation was computed. [2022-07-22 22:18:42,093 INFO L899 garLoopResultBuilder]: For program point L8981-2(line 8981) no Hoare annotation was computed. [2022-07-22 22:18:42,093 INFO L895 garLoopResultBuilder]: At program point L8973(line 8973) the Hoare annotation is: false [2022-07-22 22:18:42,093 INFO L899 garLoopResultBuilder]: For program point L8973-1(line 8973) no Hoare annotation was computed. [2022-07-22 22:18:42,094 INFO L895 garLoopResultBuilder]: At program point L6826(lines 6818 6827) the Hoare annotation is: false [2022-07-22 22:18:42,094 INFO L895 garLoopResultBuilder]: At program point L6669(lines 6667 6670) the Hoare annotation is: false [2022-07-22 22:18:42,094 INFO L899 garLoopResultBuilder]: For program point L7107-1(lines 7107 7109) no Hoare annotation was computed. [2022-07-22 22:18:42,094 INFO L895 garLoopResultBuilder]: At program point L7107(lines 7107 7109) the Hoare annotation is: false [2022-07-22 22:18:42,094 INFO L899 garLoopResultBuilder]: For program point L8998(lines 8998 9000) no Hoare annotation was computed. [2022-07-22 22:18:42,094 INFO L899 garLoopResultBuilder]: For program point L7099(lines 7099 7112) no Hoare annotation was computed. [2022-07-22 22:18:42,094 INFO L899 garLoopResultBuilder]: For program point L6819-1(line 6819) no Hoare annotation was computed. [2022-07-22 22:18:42,094 INFO L895 garLoopResultBuilder]: At program point L6819(line 6819) the Hoare annotation is: false [2022-07-22 22:18:42,095 INFO L895 garLoopResultBuilder]: At program point L8999(line 8999) the Hoare annotation is: false [2022-07-22 22:18:42,095 INFO L899 garLoopResultBuilder]: For program point L7100-1(lines 7099 7112) no Hoare annotation was computed. [2022-07-22 22:18:42,095 INFO L895 garLoopResultBuilder]: At program point L7100(line 7100) the Hoare annotation is: false [2022-07-22 22:18:42,095 INFO L895 garLoopResultBuilder]: At program point L8983(line 8983) the Hoare annotation is: false [2022-07-22 22:18:42,095 INFO L899 garLoopResultBuilder]: For program point L8983-1(line 8983) no Hoare annotation was computed. [2022-07-22 22:18:42,095 INFO L899 garLoopResultBuilder]: For program point L8975-2(line 8975) no Hoare annotation was computed. [2022-07-22 22:18:42,095 INFO L895 garLoopResultBuilder]: At program point L8975(line 8975) the Hoare annotation is: false [2022-07-22 22:18:42,096 INFO L895 garLoopResultBuilder]: At program point L8975-1(line 8975) the Hoare annotation is: (and (< 1 |ULTIMATE.start_aws_byte_cursor_eq_c_str_harness_~#cur~3#1.base|) (= |ULTIMATE.start_ensure_byte_cursor_has_allocated_buffer_member_~cursor#1.base| |ULTIMATE.start_aws_byte_cursor_eq_c_str_harness_~#cur~3#1.base|) (<= |ULTIMATE.start_aws_byte_cursor_eq_c_str_harness_#t~ret1212#1| 0) (= |ULTIMATE.start_aws_byte_cursor_eq_c_str_harness_~#cur~3#1.offset| 0) (<= 0 |ULTIMATE.start_aws_byte_cursor_eq_c_str_harness_#t~ret1212#1|) (< 0 |#StackHeapBarrier|)) [2022-07-22 22:18:42,096 INFO L895 garLoopResultBuilder]: At program point L6820-1(line 6820) the Hoare annotation is: false [2022-07-22 22:18:42,096 INFO L895 garLoopResultBuilder]: At program point L6820(line 6820) the Hoare annotation is: false [2022-07-22 22:18:42,096 INFO L899 garLoopResultBuilder]: For program point L8967(lines 8967 9001) no Hoare annotation was computed. [2022-07-22 22:18:42,096 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-22 22:18:42,096 INFO L899 garLoopResultBuilder]: For program point L7869-1(line 7869) no Hoare annotation was computed. [2022-07-22 22:18:42,096 INFO L895 garLoopResultBuilder]: At program point L7869(line 7869) the Hoare annotation is: false [2022-07-22 22:18:42,097 INFO L899 garLoopResultBuilder]: For program point L6672(lines 6672 6676) no Hoare annotation was computed. [2022-07-22 22:18:42,097 INFO L895 garLoopResultBuilder]: At program point L7110(line 7110) the Hoare annotation is: false [2022-07-22 22:18:42,097 INFO L899 garLoopResultBuilder]: For program point L6821(line 6821) no Hoare annotation was computed. [2022-07-22 22:18:42,097 INFO L899 garLoopResultBuilder]: For program point L7110-1(line 7110) no Hoare annotation was computed. [2022-07-22 22:18:42,097 INFO L895 garLoopResultBuilder]: At program point L7870(line 7870) the Hoare annotation is: false [2022-07-22 22:18:42,097 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-22 22:18:42,097 INFO L899 garLoopResultBuilder]: For program point L7870-2(line 7870) no Hoare annotation was computed. [2022-07-22 22:18:42,097 INFO L895 garLoopResultBuilder]: At program point L7870-1(line 7870) the Hoare annotation is: false [2022-07-22 22:18:42,098 INFO L899 garLoopResultBuilder]: For program point L6673-3(lines 6673 6675) no Hoare annotation was computed. [2022-07-22 22:18:42,098 INFO L899 garLoopResultBuilder]: For program point L6673-1(lines 6673 6675) no Hoare annotation was computed. [2022-07-22 22:18:42,098 INFO L895 garLoopResultBuilder]: At program point L6673(line 6673) the Hoare annotation is: false [2022-07-22 22:18:42,098 INFO L902 garLoopResultBuilder]: At program point L9002(line 9002) the Hoare annotation is: true [2022-07-22 22:18:42,098 INFO L895 garLoopResultBuilder]: At program point L8994(line 8994) the Hoare annotation is: false [2022-07-22 22:18:42,098 INFO L895 garLoopResultBuilder]: At program point L7871(lines 7861 7872) the Hoare annotation is: false [2022-07-22 22:18:42,098 INFO L899 garLoopResultBuilder]: For program point L8986(lines 8986 8991) no Hoare annotation was computed. [2022-07-22 22:18:42,099 INFO L899 garLoopResultBuilder]: For program point L8994-1(line 8994) no Hoare annotation was computed. [2022-07-22 22:18:42,099 INFO L895 garLoopResultBuilder]: At program point L7863-1(line 7863) the Hoare annotation is: false [2022-07-22 22:18:42,099 INFO L895 garLoopResultBuilder]: At program point L7863(line 7863) the Hoare annotation is: false [2022-07-22 22:18:42,099 INFO L895 garLoopResultBuilder]: At program point L8986-1(lines 8986 8991) the Hoare annotation is: false [2022-07-22 22:18:42,099 INFO L899 garLoopResultBuilder]: For program point L7863-2(line 7863) no Hoare annotation was computed. [2022-07-22 22:18:42,099 INFO L899 garLoopResultBuilder]: For program point L8995(lines 8995 8997) no Hoare annotation was computed. [2022-07-22 22:18:42,099 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2022-07-22 22:18:42,100 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2022-07-22 22:18:42,100 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2022-07-22 22:18:42,100 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2022-07-22 22:18:42,100 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2022-07-22 22:18:42,100 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2022-07-22 22:18:42,103 INFO L356 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:18:42,105 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 22:18:42,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 10:18:42 BoogieIcfgContainer [2022-07-22 22:18:42,113 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 22:18:42,113 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 22:18:42,113 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 22:18:42,113 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 22:18:42,114 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 10:18:02" (3/4) ... [2022-07-22 22:18:42,116 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-22 22:18:42,121 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2022-07-22 22:18:42,121 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_byte_cursor_is_valid [2022-07-22 22:18:42,121 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure save_byte_from_array [2022-07-22 22:18:42,121 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2022-07-22 22:18:42,121 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2022-07-22 22:18:42,122 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-07-22 22:18:42,122 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-07-22 22:18:42,122 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_eq_c_str [2022-07-22 22:18:42,122 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assert_byte_from_buffer_matches [2022-07-22 22:18:42,135 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 131 nodes and edges [2022-07-22 22:18:42,136 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 62 nodes and edges [2022-07-22 22:18:42,137 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-07-22 22:18:42,138 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-07-22 22:18:42,139 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-07-22 22:18:42,140 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-07-22 22:18:42,141 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-22 22:18:42,144 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-22 22:18:42,522 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 22:18:42,522 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 22:18:42,523 INFO L158 Benchmark]: Toolchain (without parser) took 43313.20ms. Allocated memory was 107.0MB in the beginning and 352.3MB in the end (delta: 245.4MB). Free memory was 59.8MB in the beginning and 141.4MB in the end (delta: -81.5MB). Peak memory consumption was 166.8MB. Max. memory is 16.1GB. [2022-07-22 22:18:42,523 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 107.0MB. Free memory is still 86.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 22:18:42,524 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1887.11ms. Allocated memory was 107.0MB in the beginning and 151.0MB in the end (delta: 44.0MB). Free memory was 59.7MB in the beginning and 96.6MB in the end (delta: -36.9MB). Peak memory consumption was 53.7MB. Max. memory is 16.1GB. [2022-07-22 22:18:42,524 INFO L158 Benchmark]: Boogie Procedure Inliner took 204.35ms. Allocated memory is still 151.0MB. Free memory was 96.6MB in the beginning and 84.9MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-22 22:18:42,524 INFO L158 Benchmark]: Boogie Preprocessor took 103.31ms. Allocated memory is still 151.0MB. Free memory was 84.9MB in the beginning and 78.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-22 22:18:42,526 INFO L158 Benchmark]: RCFGBuilder took 1386.60ms. Allocated memory was 151.0MB in the beginning and 201.3MB in the end (delta: 50.3MB). Free memory was 78.6MB in the beginning and 88.6MB in the end (delta: -10.0MB). Peak memory consumption was 54.0MB. Max. memory is 16.1GB. [2022-07-22 22:18:42,526 INFO L158 Benchmark]: TraceAbstraction took 39316.07ms. Allocated memory was 201.3MB in the beginning and 352.3MB in the end (delta: 151.0MB). Free memory was 88.6MB in the beginning and 272.4MB in the end (delta: -183.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 22:18:42,526 INFO L158 Benchmark]: Witness Printer took 408.99ms. Allocated memory is still 352.3MB. Free memory was 272.4MB in the beginning and 141.4MB in the end (delta: 131.1MB). Peak memory consumption was 132.1MB. Max. memory is 16.1GB. [2022-07-22 22:18:42,528 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 107.0MB. Free memory is still 86.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1887.11ms. Allocated memory was 107.0MB in the beginning and 151.0MB in the end (delta: 44.0MB). Free memory was 59.7MB in the beginning and 96.6MB in the end (delta: -36.9MB). Peak memory consumption was 53.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 204.35ms. Allocated memory is still 151.0MB. Free memory was 96.6MB in the beginning and 84.9MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 103.31ms. Allocated memory is still 151.0MB. Free memory was 84.9MB in the beginning and 78.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1386.60ms. Allocated memory was 151.0MB in the beginning and 201.3MB in the end (delta: 50.3MB). Free memory was 78.6MB in the beginning and 88.6MB in the end (delta: -10.0MB). Peak memory consumption was 54.0MB. Max. memory is 16.1GB. * TraceAbstraction took 39316.07ms. Allocated memory was 201.3MB in the beginning and 352.3MB in the end (delta: 151.0MB). Free memory was 88.6MB in the beginning and 272.4MB in the end (delta: -183.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 408.99ms. Allocated memory is still 352.3MB. Free memory was 272.4MB in the beginning and 141.4MB in the end (delta: 131.1MB). Peak memory consumption was 132.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 123 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 39.2s, OverallIterations: 10, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 14.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2436 SdHoareTripleChecker+Valid, 8.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2295 mSDsluCounter, 8248 SdHoareTripleChecker+Invalid, 7.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 4858 IncrementalHoareTripleChecker+Unchecked, 6855 mSDsCounter, 1888 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11492 IncrementalHoareTripleChecker+Invalid, 18238 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1888 mSolverCounterUnsat, 1393 mSDtfsCounter, 11492 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1952 GetRequests, 1554 SyntacticMatches, 71 SemanticMatches, 327 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 5797 ImplicationChecksByTransitivity, 15.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=361occurred in iteration=9, InterpolantAutomatonStates: 181, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 637 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 46 LocationsWithAnnotation, 388 PreInvPairs, 395 NumberOfFragments, 64 HoareAnnotationTreeSize, 388 FomulaSimplifications, 160 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 46 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 3.8s SatisfiabilityAnalysisTime, 17.8s InterpolantComputationTime, 2151 NumberOfCodeBlocks, 2151 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 2520 ConstructedInterpolants, 207 QuantifiedInterpolants, 13971 SizeOfPredicates, 111 NumberOfNonLiveVariables, 18820 ConjunctsInSsa, 304 ConjunctsInUnsatCore, 20 InterpolantComputations, 6 PerfectInterpolantSequences, 3222/3588 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 9002]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6667]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 263]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7784]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7861]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6818]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-07-22 22:18:42,574 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE