./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f 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_hash_callback_string_eq_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 617e08addfe2d13b261907959d3757079a581721356bb3e7b4090decaff2b168 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 09:27:35,800 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 09:27:35,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 09:27:35,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 09:27:35,851 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 09:27:35,852 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 09:27:35,853 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 09:27:35,854 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 09:27:35,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 09:27:35,856 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 09:27:35,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 09:27:35,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 09:27:35,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 09:27:35,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 09:27:35,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 09:27:35,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 09:27:35,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 09:27:35,861 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 09:27:35,863 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 09:27:35,865 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 09:27:35,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 09:27:35,870 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 09:27:35,873 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 09:27:35,874 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 09:27:35,882 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 09:27:35,885 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 09:27:35,885 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 09:27:35,886 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 09:27:35,887 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 09:27:35,888 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 09:27:35,889 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 09:27:35,889 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 09:27:35,890 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 09:27:35,891 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 09:27:35,891 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 09:27:35,892 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 09:27:35,893 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 09:27:35,893 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 09:27:35,893 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 09:27:35,893 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 09:27:35,895 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 09:27:35,896 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 09:27:35,916 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 09:27:35,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 09:27:35,917 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 09:27:35,917 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 09:27:35,918 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 09:27:35,918 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 09:27:35,919 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 09:27:35,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 09:27:35,919 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 09:27:35,919 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 09:27:35,920 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 09:27:35,920 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 09:27:35,920 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 09:27:35,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 09:27:35,920 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 09:27:35,920 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 09:27:35,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 09:27:35,920 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 09:27:35,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 09:27:35,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 09:27:35,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 09:27:35,921 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 09:27:35,921 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 09:27:35,921 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 09:27:35,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 09:27:35,922 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 09:27:35,922 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 09:27:35,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 09:27:35,923 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 09:27:35,923 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 617e08addfe2d13b261907959d3757079a581721356bb3e7b4090decaff2b168 [2021-11-07 09:27:36,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 09:27:36,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 09:27:36,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 09:27:36,145 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 09:27:36,146 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 09:27:36,147 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i [2021-11-07 09:27:36,204 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/360b0f1e1/dbfd4cbd495747b38b8bc4d9e771027d/FLAGb67366eef [2021-11-07 09:27:36,766 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 09:27:36,768 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i [2021-11-07 09:27:36,811 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/360b0f1e1/dbfd4cbd495747b38b8bc4d9e771027d/FLAGb67366eef [2021-11-07 09:27:37,229 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/360b0f1e1/dbfd4cbd495747b38b8bc4d9e771027d [2021-11-07 09:27:37,231 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 09:27:37,233 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 09:27:37,236 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 09:27:37,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 09:27:37,238 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 09:27:37,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:27:37" (1/1) ... [2021-11-07 09:27:37,240 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b3af5e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:27:37, skipping insertion in model container [2021-11-07 09:27:37,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:27:37" (1/1) ... [2021-11-07 09:27:37,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 09:27:37,331 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 09:27:37,547 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i[4501,4514] [2021-11-07 09:27:37,554 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i[4561,4574] [2021-11-07 09:27:37,579 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 09:27:37,586 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 09:27:38,594 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:38,595 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:38,595 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:38,596 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:38,597 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:38,615 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:38,618 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:38,620 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:38,621 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:38,899 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 09:27:38,900 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 09:27:38,901 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 09:27:38,903 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 09:27:38,907 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 09:27:38,909 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 09:27:38,909 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 09:27:38,910 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 09:27:38,911 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 09:27:38,912 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 09:27:39,071 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 09:27:39,144 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,153 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,341 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,342 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,360 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,362 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,370 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,370 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,387 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,389 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,389 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,390 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,390 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,391 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,391 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 09:27:39,469 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 09:27:39,486 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i[4501,4514] [2021-11-07 09:27:39,486 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i[4561,4574] [2021-11-07 09:27:39,487 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 09:27:39,488 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 09:27:39,516 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,516 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,517 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,517 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,518 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,521 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,522 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,522 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,522 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,544 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 09:27:39,545 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 09:27:39,545 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 09:27:39,546 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 09:27:39,546 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 09:27:39,546 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 09:27:39,547 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 09:27:39,547 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 09:27:39,547 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 09:27:39,547 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 09:27:39,561 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 09:27:39,620 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,622 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,662 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,663 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,668 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,668 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,671 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,672 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,678 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,678 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,679 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,679 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,679 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,680 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,680 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 09:27:39,704 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 09:27:39,844 INFO L208 MainTranslator]: Completed translation [2021-11-07 09:27:39,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:27:39 WrapperNode [2021-11-07 09:27:39,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 09:27:39,846 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 09:27:39,846 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 09:27:39,846 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 09:27:39,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:27:39" (1/1) ... [2021-11-07 09:27:39,942 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:27:39" (1/1) ... [2021-11-07 09:27:40,004 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 09:27:40,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 09:27:40,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 09:27:40,005 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 09:27:40,014 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:27:39" (1/1) ... [2021-11-07 09:27:40,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:27:39" (1/1) ... [2021-11-07 09:27:40,023 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:27:39" (1/1) ... [2021-11-07 09:27:40,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:27:39" (1/1) ... [2021-11-07 09:27:40,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:27:39" (1/1) ... [2021-11-07 09:27:40,065 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:27:39" (1/1) ... [2021-11-07 09:27:40,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:27:39" (1/1) ... [2021-11-07 09:27:40,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 09:27:40,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 09:27:40,088 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 09:27:40,088 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 09:27:40,089 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:27:39" (1/1) ... [2021-11-07 09:27:40,094 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 09:27:40,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 09:27:40,115 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 09:27:40,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 09:27:40,145 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-07 09:27:40,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 09:27:40,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 09:27:40,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 09:27:40,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 09:27:40,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 09:27:40,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 09:27:40,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 09:27:40,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 09:27:40,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 09:27:40,737 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##77: assume !true; [2021-11-07 09:27:40,744 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 09:27:40,745 INFO L299 CfgBuilder]: Removed 86 assume(true) statements. [2021-11-07 09:27:40,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:27:40 BoogieIcfgContainer [2021-11-07 09:27:40,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 09:27:40,749 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 09:27:40,749 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 09:27:40,751 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 09:27:40,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 09:27:37" (1/3) ... [2021-11-07 09:27:40,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@533677ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:27:40, skipping insertion in model container [2021-11-07 09:27:40,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:27:39" (2/3) ... [2021-11-07 09:27:40,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@533677ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:27:40, skipping insertion in model container [2021-11-07 09:27:40,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:27:40" (3/3) ... [2021-11-07 09:27:40,755 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_callback_string_eq_harness.i [2021-11-07 09:27:40,762 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 09:27:40,763 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-07 09:27:40,806 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 09:27:40,815 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 09:27:40,815 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-07 09:27:40,840 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 96 states have (on average 1.4166666666666667) internal successors, (136), 100 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 09:27:40,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-07 09:27:40,847 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:27:40,848 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 09:27:40,849 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-07 09:27:40,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:27:40,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1460465419, now seen corresponding path program 1 times [2021-11-07 09:27:40,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:27:40,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974511644] [2021-11-07 09:27:40,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:27:40,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:27:41,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:27:41,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:27:41,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:27:41,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974511644] [2021-11-07 09:27:41,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974511644] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:27:41,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:27:41,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 09:27:41,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831933894] [2021-11-07 09:27:41,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:27:41,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 09:27:41,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:27:41,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 09:27:41,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 09:27:41,221 INFO L87 Difference]: Start difference. First operand has 101 states, 96 states have (on average 1.4166666666666667) internal successors, (136), 100 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 09:27:41,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:27:41,238 INFO L93 Difference]: Finished difference Result 198 states and 267 transitions. [2021-11-07 09:27:41,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 09:27:41,240 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-11-07 09:27:41,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:27:41,246 INFO L225 Difference]: With dead ends: 198 [2021-11-07 09:27:41,247 INFO L226 Difference]: Without dead ends: 95 [2021-11-07 09:27:41,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.04ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 09:27:41,252 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.97ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 09:27:41,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.97ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 09:27:41,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-11-07 09:27:41,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-11-07 09:27:41,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 91 states have (on average 1.2307692307692308) internal successors, (112), 94 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 09:27:41,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 112 transitions. [2021-11-07 09:27:41,279 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 112 transitions. Word has length 45 [2021-11-07 09:27:41,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:27:41,280 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 112 transitions. [2021-11-07 09:27:41,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 09:27:41,280 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 112 transitions. [2021-11-07 09:27:41,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-07 09:27:41,281 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:27:41,281 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 09:27:41,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 09:27:41,282 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-07 09:27:41,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:27:41,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1370581995, now seen corresponding path program 1 times [2021-11-07 09:27:41,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:27:41,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250947272] [2021-11-07 09:27:41,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:27:41,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:27:41,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:27:41,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:27:41,456 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:27:41,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250947272] [2021-11-07 09:27:41,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250947272] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:27:41,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:27:41,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-07 09:27:41,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841660439] [2021-11-07 09:27:41,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:27:41,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 09:27:41,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:27:41,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 09:27:41,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-11-07 09:27:41,459 INFO L87 Difference]: Start difference. First operand 95 states and 112 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 09:27:41,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:27:41,803 INFO L93 Difference]: Finished difference Result 201 states and 236 transitions. [2021-11-07 09:27:41,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-07 09:27:41,803 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-11-07 09:27:41,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:27:41,807 INFO L225 Difference]: With dead ends: 201 [2021-11-07 09:27:41,808 INFO L226 Difference]: Without dead ends: 136 [2021-11-07 09:27:41,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 205.55ms TimeCoverageRelationStatistics Valid=160, Invalid=392, Unknown=0, NotChecked=0, Total=552 [2021-11-07 09:27:41,813 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 821 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 117.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.13ms SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 139.56ms IncrementalHoareTripleChecker+Time [2021-11-07 09:27:41,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [821 Valid, 478 Invalid, 194 Unknown, 0 Unchecked, 6.13ms Time], IncrementalHoareTripleChecker [52 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 139.56ms Time] [2021-11-07 09:27:41,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2021-11-07 09:27:41,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 95. [2021-11-07 09:27:41,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 91 states have (on average 1.1868131868131868) internal successors, (108), 94 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 09:27:41,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 108 transitions. [2021-11-07 09:27:41,834 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 108 transitions. Word has length 46 [2021-11-07 09:27:41,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:27:41,835 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 108 transitions. [2021-11-07 09:27:41,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 09:27:41,836 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 108 transitions. [2021-11-07 09:27:41,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-07 09:27:41,837 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:27:41,837 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 09:27:41,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 09:27:41,838 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-07 09:27:41,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:27:41,839 INFO L85 PathProgramCache]: Analyzing trace with hash 947880169, now seen corresponding path program 1 times [2021-11-07 09:27:41,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:27:41,839 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571674961] [2021-11-07 09:27:41,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:27:41,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:27:41,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:27:42,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:27:42,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:27:42,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571674961] [2021-11-07 09:27:42,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571674961] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:27:42,008 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:27:42,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-07 09:27:42,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276363697] [2021-11-07 09:27:42,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:27:42,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 09:27:42,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:27:42,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 09:27:42,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-07 09:27:42,012 INFO L87 Difference]: Start difference. First operand 95 states and 108 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 09:27:42,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:27:42,151 INFO L93 Difference]: Finished difference Result 141 states and 161 transitions. [2021-11-07 09:27:42,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 09:27:42,153 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-11-07 09:27:42,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:27:42,153 INFO L225 Difference]: With dead ends: 141 [2021-11-07 09:27:42,153 INFO L226 Difference]: Without dead ends: 95 [2021-11-07 09:27:42,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 98.23ms TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2021-11-07 09:27:42,155 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 514 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.51ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.52ms IncrementalHoareTripleChecker+Time [2021-11-07 09:27:42,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [514 Valid, 256 Invalid, 62 Unknown, 0 Unchecked, 1.51ms Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 53.52ms Time] [2021-11-07 09:27:42,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-11-07 09:27:42,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-11-07 09:27:42,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 91 states have (on average 1.1758241758241759) internal successors, (107), 94 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 09:27:42,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 107 transitions. [2021-11-07 09:27:42,160 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 107 transitions. Word has length 46 [2021-11-07 09:27:42,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:27:42,161 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 107 transitions. [2021-11-07 09:27:42,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 09:27:42,161 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 107 transitions. [2021-11-07 09:27:42,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-07 09:27:42,162 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:27:42,162 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 09:27:42,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 09:27:42,162 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-07 09:27:42,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:27:42,163 INFO L85 PathProgramCache]: Analyzing trace with hash 479564307, now seen corresponding path program 1 times [2021-11-07 09:27:42,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:27:42,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024389634] [2021-11-07 09:27:42,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:27:42,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:27:42,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:27:42,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:27:42,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:27:42,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024389634] [2021-11-07 09:27:42,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024389634] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:27:42,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:27:42,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-07 09:27:42,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959148428] [2021-11-07 09:27:42,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:27:42,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 09:27:42,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:27:42,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 09:27:42,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-11-07 09:27:42,382 INFO L87 Difference]: Start difference. First operand 95 states and 107 transitions. Second operand has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 09:27:42,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:27:42,571 INFO L93 Difference]: Finished difference Result 132 states and 148 transitions. [2021-11-07 09:27:42,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 09:27:42,572 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-11-07 09:27:42,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:27:42,573 INFO L225 Difference]: With dead ends: 132 [2021-11-07 09:27:42,573 INFO L226 Difference]: Without dead ends: 95 [2021-11-07 09:27:42,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 137.04ms TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-11-07 09:27:42,575 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 556 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.23ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 72.86ms IncrementalHoareTripleChecker+Time [2021-11-07 09:27:42,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [556 Valid, 360 Invalid, 111 Unknown, 0 Unchecked, 2.23ms Time], IncrementalHoareTripleChecker [10 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 72.86ms Time] [2021-11-07 09:27:42,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-11-07 09:27:42,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-11-07 09:27:42,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 91 states have (on average 1.164835164835165) internal successors, (106), 94 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 09:27:42,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 106 transitions. [2021-11-07 09:27:42,588 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 106 transitions. Word has length 51 [2021-11-07 09:27:42,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:27:42,589 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 106 transitions. [2021-11-07 09:27:42,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 09:27:42,590 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 106 transitions. [2021-11-07 09:27:42,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-07 09:27:42,593 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:27:42,593 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 09:27:42,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 09:27:42,594 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-07 09:27:42,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:27:42,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1733405211, now seen corresponding path program 1 times [2021-11-07 09:27:42,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:27:42,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681111235] [2021-11-07 09:27:42,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:27:42,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:27:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:27:42,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:27:42,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:27:42,764 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681111235] [2021-11-07 09:27:42,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681111235] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:27:42,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:27:42,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-07 09:27:42,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005034697] [2021-11-07 09:27:42,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:27:42,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 09:27:42,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:27:42,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 09:27:42,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-07 09:27:42,766 INFO L87 Difference]: Start difference. First operand 95 states and 106 transitions. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 09:27:42,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:27:42,943 INFO L93 Difference]: Finished difference Result 116 states and 126 transitions. [2021-11-07 09:27:42,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 09:27:42,943 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-11-07 09:27:42,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:27:42,944 INFO L225 Difference]: With dead ends: 116 [2021-11-07 09:27:42,944 INFO L226 Difference]: Without dead ends: 95 [2021-11-07 09:27:42,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 136.21ms TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-11-07 09:27:42,945 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 469 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.39ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 58.65ms IncrementalHoareTripleChecker+Time [2021-11-07 09:27:42,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [469 Valid, 344 Invalid, 86 Unknown, 0 Unchecked, 1.39ms Time], IncrementalHoareTripleChecker [11 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 58.65ms Time] [2021-11-07 09:27:42,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-11-07 09:27:42,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-11-07 09:27:42,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 91 states have (on average 1.1538461538461537) internal successors, (105), 94 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 09:27:42,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 105 transitions. [2021-11-07 09:27:42,949 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 105 transitions. Word has length 56 [2021-11-07 09:27:42,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:27:42,949 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 105 transitions. [2021-11-07 09:27:42,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 09:27:42,950 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 105 transitions. [2021-11-07 09:27:42,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-07 09:27:42,950 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:27:42,950 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 09:27:42,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 09:27:42,951 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-07 09:27:42,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:27:42,951 INFO L85 PathProgramCache]: Analyzing trace with hash -2102829230, now seen corresponding path program 1 times [2021-11-07 09:27:42,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:27:42,952 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919584591] [2021-11-07 09:27:42,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:27:42,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:27:42,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:27:43,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:27:43,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:27:43,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919584591] [2021-11-07 09:27:43,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919584591] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:27:43,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:27:43,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-07 09:27:43,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224572565] [2021-11-07 09:27:43,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:27:43,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 09:27:43,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:27:43,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 09:27:43,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-11-07 09:27:43,157 INFO L87 Difference]: Start difference. First operand 95 states and 105 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 09:27:43,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:27:43,401 INFO L93 Difference]: Finished difference Result 95 states and 105 transitions. [2021-11-07 09:27:43,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-07 09:27:43,401 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-11-07 09:27:43,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:27:43,402 INFO L225 Difference]: With dead ends: 95 [2021-11-07 09:27:43,402 INFO L226 Difference]: Without dead ends: 93 [2021-11-07 09:27:43,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 185.15ms TimeCoverageRelationStatistics Valid=180, Invalid=420, Unknown=0, NotChecked=0, Total=600 [2021-11-07 09:27:43,403 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 466 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.06ms SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 86.68ms IncrementalHoareTripleChecker+Time [2021-11-07 09:27:43,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [466 Valid, 479 Invalid, 139 Unknown, 0 Unchecked, 2.06ms Time], IncrementalHoareTripleChecker [25 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 86.68ms Time] [2021-11-07 09:27:43,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-11-07 09:27:43,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2021-11-07 09:27:43,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 90 states have (on average 1.1444444444444444) internal successors, (103), 92 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 09:27:43,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 103 transitions. [2021-11-07 09:27:43,407 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 103 transitions. Word has length 57 [2021-11-07 09:27:43,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:27:43,407 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 103 transitions. [2021-11-07 09:27:43,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 09:27:43,408 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 103 transitions. [2021-11-07 09:27:43,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-07 09:27:43,408 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:27:43,408 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 09:27:43,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 09:27:43,409 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-07 09:27:43,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:27:43,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1291137303, now seen corresponding path program 1 times [2021-11-07 09:27:43,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:27:43,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562563230] [2021-11-07 09:27:43,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:27:43,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:27:43,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:27:43,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:27:43,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:27:43,657 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562563230] [2021-11-07 09:27:43,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562563230] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:27:43,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:27:43,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 09:27:43,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999233828] [2021-11-07 09:27:43,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:27:43,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 09:27:43,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:27:43,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 09:27:43,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 09:27:43,660 INFO L87 Difference]: Start difference. First operand 93 states and 103 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 09:27:43,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:27:43,695 INFO L93 Difference]: Finished difference Result 93 states and 103 transitions. [2021-11-07 09:27:43,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 09:27:43,695 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-11-07 09:27:43,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:27:43,696 INFO L225 Difference]: With dead ends: 93 [2021-11-07 09:27:43,696 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 09:27:43,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 55.34ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-07 09:27:43,697 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 5 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.20ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.94ms IncrementalHoareTripleChecker+Time [2021-11-07 09:27:43,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 7 Invalid, 8 Unknown, 0 Unchecked, 0.20ms Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 6.94ms Time] [2021-11-07 09:27:43,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 09:27:43,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 09:27:43,698 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) [2021-11-07 09:27:43,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 09:27:43,698 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2021-11-07 09:27:43,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:27:43,698 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 09:27:43,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 09:27:43,699 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 09:27:43,699 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 09:27:43,701 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2021-11-07 09:27:43,701 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2021-11-07 09:27:43,701 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2021-11-07 09:27:43,702 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2021-11-07 09:27:43,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 09:27:43,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-07 09:27:43,725 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-07 09:27:43,726 INFO L858 garLoopResultBuilder]: For program point L7699(lines 7699 7703) no Hoare annotation was computed. [2021-11-07 09:27:43,726 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-07 09:27:43,726 INFO L858 garLoopResultBuilder]: For program point L11317(lines 11317 11327) no Hoare annotation was computed. [2021-11-07 09:27:43,726 INFO L858 garLoopResultBuilder]: For program point L11319-2(line 11319) no Hoare annotation was computed. [2021-11-07 09:27:43,726 INFO L858 garLoopResultBuilder]: For program point L11319(line 11319) no Hoare annotation was computed. [2021-11-07 09:27:43,726 INFO L854 garLoopResultBuilder]: At program point L6828-1(lines 6819 6829) the Hoare annotation is: false [2021-11-07 09:27:43,726 INFO L854 garLoopResultBuilder]: At program point L6828(lines 6819 6829) the Hoare annotation is: false [2021-11-07 09:27:43,727 INFO L858 garLoopResultBuilder]: For program point L222(lines 222 224) no Hoare annotation was computed. [2021-11-07 09:27:43,727 INFO L858 garLoopResultBuilder]: For program point L222-1(lines 222 224) no Hoare annotation was computed. [2021-11-07 09:27:43,727 INFO L858 garLoopResultBuilder]: For program point L222-2(lines 7114 7124) no Hoare annotation was computed. [2021-11-07 09:27:43,727 INFO L858 garLoopResultBuilder]: For program point L222-3(lines 222 224) no Hoare annotation was computed. [2021-11-07 09:27:43,727 INFO L854 garLoopResultBuilder]: At program point L11074(lines 11056 11075) the Hoare annotation is: false [2021-11-07 09:27:43,727 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-07 09:27:43,727 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-11-07 09:27:43,727 INFO L858 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-11-07 09:27:43,727 INFO L858 garLoopResultBuilder]: For program point L223-3(line 223) no Hoare annotation was computed. [2021-11-07 09:27:43,728 INFO L858 garLoopResultBuilder]: For program point L223-4(line 223) no Hoare annotation was computed. [2021-11-07 09:27:43,728 INFO L858 garLoopResultBuilder]: For program point L223-6(line 223) no Hoare annotation was computed. [2021-11-07 09:27:43,728 INFO L854 garLoopResultBuilder]: At program point L10810-5(line 10810) the Hoare annotation is: false [2021-11-07 09:27:43,728 INFO L858 garLoopResultBuilder]: For program point L223-7(line 223) no Hoare annotation was computed. [2021-11-07 09:27:43,728 INFO L858 garLoopResultBuilder]: For program point L11058(line 11058) no Hoare annotation was computed. [2021-11-07 09:27:43,728 INFO L854 garLoopResultBuilder]: At program point L7705(lines 7686 7706) the Hoare annotation is: false [2021-11-07 09:27:43,728 INFO L858 garLoopResultBuilder]: For program point L223-9(line 223) no Hoare annotation was computed. [2021-11-07 09:27:43,728 INFO L858 garLoopResultBuilder]: For program point L223-10(line 223) no Hoare annotation was computed. [2021-11-07 09:27:43,728 INFO L858 garLoopResultBuilder]: For program point L10810-1(line 10810) no Hoare annotation was computed. [2021-11-07 09:27:43,729 INFO L858 garLoopResultBuilder]: For program point L10810-3(line 10810) no Hoare annotation was computed. [2021-11-07 09:27:43,729 INFO L858 garLoopResultBuilder]: For program point L11058-2(line 11058) no Hoare annotation was computed. [2021-11-07 09:27:43,729 INFO L858 garLoopResultBuilder]: For program point L11323(lines 11323 11326) no Hoare annotation was computed. [2021-11-07 09:27:43,729 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-07 09:27:43,729 INFO L858 garLoopResultBuilder]: For program point L11059(line 11059) no Hoare annotation was computed. [2021-11-07 09:27:43,729 INFO L858 garLoopResultBuilder]: For program point L11059-2(line 11059) no Hoare annotation was computed. [2021-11-07 09:27:43,729 INFO L858 garLoopResultBuilder]: For program point L7112(lines 7112 7125) no Hoare annotation was computed. [2021-11-07 09:27:43,729 INFO L858 garLoopResultBuilder]: For program point L11060(lines 11060 11064) no Hoare annotation was computed. [2021-11-07 09:27:43,730 INFO L854 garLoopResultBuilder]: At program point L6816-1(lines 6813 6817) the Hoare annotation is: false [2021-11-07 09:27:43,730 INFO L854 garLoopResultBuilder]: At program point L6816(lines 6813 6817) the Hoare annotation is: false [2021-11-07 09:27:43,730 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-07 09:27:43,730 INFO L854 garLoopResultBuilder]: At program point L6899-1(lines 6895 6900) the Hoare annotation is: false [2021-11-07 09:27:43,730 INFO L854 garLoopResultBuilder]: At program point L6899(lines 6895 6900) the Hoare annotation is: false [2021-11-07 09:27:43,730 INFO L858 garLoopResultBuilder]: For program point L210(lines 210 212) no Hoare annotation was computed. [2021-11-07 09:27:43,730 INFO L858 garLoopResultBuilder]: For program point L210-1(lines 210 212) no Hoare annotation was computed. [2021-11-07 09:27:43,730 INFO L858 garLoopResultBuilder]: For program point L210-2(lines 210 212) no Hoare annotation was computed. [2021-11-07 09:27:43,730 INFO L858 garLoopResultBuilder]: For program point L210-3(lines 210 212) no Hoare annotation was computed. [2021-11-07 09:27:43,731 INFO L858 garLoopResultBuilder]: For program point L210-4(lines 210 212) no Hoare annotation was computed. [2021-11-07 09:27:43,731 INFO L858 garLoopResultBuilder]: For program point L210-5(lines 210 212) no Hoare annotation was computed. [2021-11-07 09:27:43,731 INFO L858 garLoopResultBuilder]: For program point L210-6(lines 210 212) no Hoare annotation was computed. [2021-11-07 09:27:43,731 INFO L858 garLoopResultBuilder]: For program point L210-7(lines 210 212) no Hoare annotation was computed. [2021-11-07 09:27:43,731 INFO L858 garLoopResultBuilder]: For program point L210-8(lines 210 212) no Hoare annotation was computed. [2021-11-07 09:27:43,731 INFO L858 garLoopResultBuilder]: For program point L210-9(lines 7693 7697) no Hoare annotation was computed. [2021-11-07 09:27:43,731 INFO L858 garLoopResultBuilder]: For program point L210-10(lines 210 212) no Hoare annotation was computed. [2021-11-07 09:27:43,731 INFO L854 garLoopResultBuilder]: At program point L6272-1(lines 6263 6273) the Hoare annotation is: false [2021-11-07 09:27:43,732 INFO L854 garLoopResultBuilder]: At program point L6272(lines 6263 6273) the Hoare annotation is: false [2021-11-07 09:27:43,732 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-07 09:27:43,732 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-11-07 09:27:43,732 INFO L858 garLoopResultBuilder]: For program point L211-2(line 211) no Hoare annotation was computed. [2021-11-07 09:27:43,732 INFO L858 garLoopResultBuilder]: For program point L211-4(line 211) no Hoare annotation was computed. [2021-11-07 09:27:43,732 INFO L858 garLoopResultBuilder]: For program point L211-6(line 211) no Hoare annotation was computed. [2021-11-07 09:27:43,732 INFO L858 garLoopResultBuilder]: For program point L211-8(line 211) no Hoare annotation was computed. [2021-11-07 09:27:43,732 INFO L858 garLoopResultBuilder]: For program point L211-10(line 211) no Hoare annotation was computed. [2021-11-07 09:27:43,732 INFO L858 garLoopResultBuilder]: For program point L211-12(line 211) no Hoare annotation was computed. [2021-11-07 09:27:43,733 INFO L854 garLoopResultBuilder]: At program point L261(line 261) the Hoare annotation is: false [2021-11-07 09:27:43,733 INFO L858 garLoopResultBuilder]: For program point L211-14(line 211) no Hoare annotation was computed. [2021-11-07 09:27:43,733 INFO L854 garLoopResultBuilder]: At program point L261-1(line 261) the Hoare annotation is: false [2021-11-07 09:27:43,733 INFO L854 garLoopResultBuilder]: At program point L261-2(line 261) the Hoare annotation is: false [2021-11-07 09:27:43,733 INFO L858 garLoopResultBuilder]: For program point L211-16(line 211) no Hoare annotation was computed. [2021-11-07 09:27:43,733 INFO L858 garLoopResultBuilder]: For program point L211-18(line 211) no Hoare annotation was computed. [2021-11-07 09:27:43,733 INFO L858 garLoopResultBuilder]: For program point L211-20(line 211) no Hoare annotation was computed. [2021-11-07 09:27:43,733 INFO L858 garLoopResultBuilder]: For program point L6257-2(line 6257) no Hoare annotation was computed. [2021-11-07 09:27:43,733 INFO L858 garLoopResultBuilder]: For program point L6257-3(line 6257) no Hoare annotation was computed. [2021-11-07 09:27:43,734 INFO L858 garLoopResultBuilder]: For program point L6257(line 6257) no Hoare annotation was computed. [2021-11-07 09:27:43,734 INFO L854 garLoopResultBuilder]: At program point L6257-6(lines 6253 6258) the Hoare annotation is: false [2021-11-07 09:27:43,734 INFO L858 garLoopResultBuilder]: For program point L6257-7(line 6257) no Hoare annotation was computed. [2021-11-07 09:27:43,734 INFO L858 garLoopResultBuilder]: For program point L6257-5(line 6257) no Hoare annotation was computed. [2021-11-07 09:27:43,734 INFO L858 garLoopResultBuilder]: For program point L6257-10(line 6257) no Hoare annotation was computed. [2021-11-07 09:27:43,734 INFO L858 garLoopResultBuilder]: For program point L6257-9(line 6257) no Hoare annotation was computed. [2021-11-07 09:27:43,734 INFO L858 garLoopResultBuilder]: For program point L6257-14(line 6257) no Hoare annotation was computed. [2021-11-07 09:27:43,734 INFO L858 garLoopResultBuilder]: For program point L6257-12(line 6257) no Hoare annotation was computed. [2021-11-07 09:27:43,734 INFO L854 garLoopResultBuilder]: At program point L6257-13(lines 6253 6258) the Hoare annotation is: false [2021-11-07 09:27:43,735 INFO L858 garLoopResultBuilder]: For program point L6257-19(line 6257) no Hoare annotation was computed. [2021-11-07 09:27:43,735 INFO L858 garLoopResultBuilder]: For program point L6257-16(line 6257) no Hoare annotation was computed. [2021-11-07 09:27:43,735 INFO L858 garLoopResultBuilder]: For program point L6257-17(line 6257) no Hoare annotation was computed. [2021-11-07 09:27:43,735 INFO L861 garLoopResultBuilder]: At program point L11328(line 11328) the Hoare annotation is: true [2021-11-07 09:27:43,735 INFO L858 garLoopResultBuilder]: For program point L6257-23(line 6257) no Hoare annotation was computed. [2021-11-07 09:27:43,735 INFO L854 garLoopResultBuilder]: At program point L6257-20(lines 6253 6258) the Hoare annotation is: false [2021-11-07 09:27:43,735 INFO L858 garLoopResultBuilder]: For program point L6257-21(line 6257) no Hoare annotation was computed. [2021-11-07 09:27:43,735 INFO L858 garLoopResultBuilder]: For program point L6257-26(line 6257) no Hoare annotation was computed. [2021-11-07 09:27:43,735 INFO L854 garLoopResultBuilder]: At program point L6257-27(lines 6253 6258) the Hoare annotation is: false [2021-11-07 09:27:43,736 INFO L858 garLoopResultBuilder]: For program point L6257-24(line 6257) no Hoare annotation was computed. [2021-11-07 09:27:43,736 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-07 09:27:43,736 INFO L854 garLoopResultBuilder]: At program point L6903-1(lines 6902 6904) the Hoare annotation is: false [2021-11-07 09:27:43,736 INFO L854 garLoopResultBuilder]: At program point L6903(lines 6902 6904) the Hoare annotation is: false [2021-11-07 09:27:43,736 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-11-07 09:27:43,736 INFO L858 garLoopResultBuilder]: For program point L11065(lines 11065 11073) no Hoare annotation was computed. [2021-11-07 09:27:43,736 INFO L854 garLoopResultBuilder]: At program point L10803(lines 10803 10811) the Hoare annotation is: false [2021-11-07 09:27:43,737 INFO L854 garLoopResultBuilder]: At program point L266(line 266) the Hoare annotation is: (= ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size 96) [2021-11-07 09:27:43,737 INFO L854 garLoopResultBuilder]: At program point L266-1(line 266) the Hoare annotation is: false [2021-11-07 09:27:43,737 INFO L858 garLoopResultBuilder]: For program point L6823(lines 6823 6824) no Hoare annotation was computed. [2021-11-07 09:27:43,737 INFO L854 garLoopResultBuilder]: At program point L266-2(line 266) the Hoare annotation is: false [2021-11-07 09:27:43,737 INFO L858 garLoopResultBuilder]: For program point L6823-5(lines 6823 6824) no Hoare annotation was computed. [2021-11-07 09:27:43,737 INFO L858 garLoopResultBuilder]: For program point L6823-3(lines 6823 6824) no Hoare annotation was computed. [2021-11-07 09:27:43,737 INFO L858 garLoopResultBuilder]: For program point L6823-2(lines 6823 6824) no Hoare annotation was computed. [2021-11-07 09:27:43,740 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-07 09:27:43,741 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 09:27:43,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 09:27:43 BoogieIcfgContainer [2021-11-07 09:27:43,751 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 09:27:43,751 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 09:27:43,751 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 09:27:43,751 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 09:27:43,752 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:27:40" (3/4) ... [2021-11-07 09:27:43,754 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 09:27:43,765 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2021-11-07 09:27:43,766 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-07 09:27:43,767 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-07 09:27:43,767 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 09:27:43,913 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-11-07 09:27:43,914 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 09:27:43,914 INFO L158 Benchmark]: Toolchain (without parser) took 6680.83ms. Allocated memory was 123.7MB in the beginning and 289.4MB in the end (delta: 165.7MB). Free memory was 78.4MB in the beginning and 200.6MB in the end (delta: -122.2MB). Peak memory consumption was 126.3MB. Max. memory is 16.1GB. [2021-11-07 09:27:43,914 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 73.4MB. Free memory is still 34.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-07 09:27:43,915 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2609.64ms. Allocated memory was 123.7MB in the beginning and 163.6MB in the end (delta: 39.8MB). Free memory was 78.1MB in the beginning and 57.3MB in the end (delta: 20.8MB). Peak memory consumption was 87.0MB. Max. memory is 16.1GB. [2021-11-07 09:27:43,915 INFO L158 Benchmark]: Boogie Procedure Inliner took 158.52ms. Allocated memory is still 163.6MB. Free memory was 57.3MB in the beginning and 94.8MB in the end (delta: -37.5MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2021-11-07 09:27:43,915 INFO L158 Benchmark]: Boogie Preprocessor took 82.24ms. Allocated memory is still 163.6MB. Free memory was 94.8MB in the beginning and 89.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-07 09:27:43,915 INFO L158 Benchmark]: RCFGBuilder took 659.68ms. Allocated memory was 163.6MB in the beginning and 226.5MB in the end (delta: 62.9MB). Free memory was 89.7MB in the beginning and 155.9MB in the end (delta: -66.2MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2021-11-07 09:27:43,916 INFO L158 Benchmark]: TraceAbstraction took 3001.87ms. Allocated memory is still 226.5MB. Free memory was 154.9MB in the beginning and 108.1MB in the end (delta: 46.8MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. [2021-11-07 09:27:43,916 INFO L158 Benchmark]: Witness Printer took 162.64ms. Allocated memory was 226.5MB in the beginning and 289.4MB in the end (delta: 62.9MB). Free memory was 108.1MB in the beginning and 200.6MB in the end (delta: -92.5MB). Peak memory consumption was 54.7MB. Max. memory is 16.1GB. [2021-11-07 09:27:43,918 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 73.4MB. Free memory is still 34.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2609.64ms. Allocated memory was 123.7MB in the beginning and 163.6MB in the end (delta: 39.8MB). Free memory was 78.1MB in the beginning and 57.3MB in the end (delta: 20.8MB). Peak memory consumption was 87.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 158.52ms. Allocated memory is still 163.6MB. Free memory was 57.3MB in the beginning and 94.8MB in the end (delta: -37.5MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.24ms. Allocated memory is still 163.6MB. Free memory was 94.8MB in the beginning and 89.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 659.68ms. Allocated memory was 163.6MB in the beginning and 226.5MB in the end (delta: 62.9MB). Free memory was 89.7MB in the beginning and 155.9MB in the end (delta: -66.2MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3001.87ms. Allocated memory is still 226.5MB. Free memory was 154.9MB in the beginning and 108.1MB in the end (delta: 46.8MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. * Witness Printer took 162.64ms. Allocated memory was 226.5MB in the beginning and 289.4MB in the end (delta: 62.9MB). Free memory was 108.1MB in the beginning and 200.6MB in the end (delta: -92.5MB). Peak memory consumption was 54.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - 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 1 procedures, 101 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2935.89ms, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 22.94ms, AutomataDifference: 1224.68ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 22.86ms, InitialAbstractionConstructionTime: 16.61ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2831 SdHoareTripleChecker+Valid, 418.21ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2831 mSDsluCounter, 2044 SdHoareTripleChecker+Invalid, 353.92ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1484 mSDsCounter, 102 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 498 IncrementalHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 102 mSolverCounterUnsat, 560 mSDtfsCounter, 498 mSolverCounterSat, 14.47ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 817.57ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=101occurred in iteration=0, InterpolantAutomatonStates: 84, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 56.96ms AutomataMinimizationTime, 7 MinimizatonAttempts, 41 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 25 LocationsWithAnnotation, 25 PreInvPairs, 26 NumberOfFragments, 27 HoareAnnotationTreeSize, 25 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 2.54ms HoareSimplificationTime, 25 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 14.15ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 42.36ms SsaConstructionTime, 379.23ms SatisfiabilityAnalysisTime, 953.20ms InterpolantComputationTime, 362 NumberOfCodeBlocks, 362 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 355 ConstructedInterpolants, 0 QuantifiedInterpolants, 935 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 6895]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10803]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6902]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: max_size == 96 - InvariantResult [Line: 6253]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6819]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6253]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 11056]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6813]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6253]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6895]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6253]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6902]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6263]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10810]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6263]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6813]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6819]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 7686]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 11328]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-07 09:27:43,952 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