./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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_linked_list_push_front_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 52a5b40e07f9d2025e21e89532c54ecb2612af1d6384644534b1ef79f7198c6a --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 22:51:54,058 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 22:51:54,060 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 22:51:54,123 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 22:51:54,124 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 22:51:54,125 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 22:51:54,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 22:51:54,129 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 22:51:54,130 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 22:51:54,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 22:51:54,135 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 22:51:54,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 22:51:54,137 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 22:51:54,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 22:51:54,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 22:51:54,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 22:51:54,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 22:51:54,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 22:51:54,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 22:51:54,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 22:51:54,152 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 22:51:54,153 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 22:51:54,153 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 22:51:54,154 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 22:51:54,155 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 22:51:54,160 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 22:51:54,160 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 22:51:54,161 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 22:51:54,161 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 22:51:54,162 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 22:51:54,163 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 22:51:54,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 22:51:54,164 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 22:51:54,164 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 22:51:54,165 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 22:51:54,165 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 22:51:54,166 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 22:51:54,166 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 22:51:54,166 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 22:51:54,166 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 22:51:54,167 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 22:51:54,168 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 22:51:54,169 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-13 22:51:54,190 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 22:51:54,190 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 22:51:54,191 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 22:51:54,191 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 22:51:54,191 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 22:51:54,191 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 22:51:54,192 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 22:51:54,192 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 22:51:54,192 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 22:51:54,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 22:51:54,193 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 22:51:54,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 22:51:54,193 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 22:51:54,193 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 22:51:54,193 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 22:51:54,194 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 22:51:54,194 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 22:51:54,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 22:51:54,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 22:51:54,194 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 22:51:54,194 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 22:51:54,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 22:51:54,194 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 22:51:54,195 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 22:51:54,195 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 22:51:54,195 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 22:51:54,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 22:51:54,195 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 22:51:54,195 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 22:51:54,195 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 22:51:54,196 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52a5b40e07f9d2025e21e89532c54ecb2612af1d6384644534b1ef79f7198c6a [2022-07-13 22:51:54,370 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 22:51:54,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 22:51:54,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 22:51:54,393 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 22:51:54,393 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 22:51:54,394 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i [2022-07-13 22:51:54,458 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47c7e7e16/7f58d7325b1f41e5a531eb88ea4dfc1c/FLAG0db8b861f [2022-07-13 22:51:54,989 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 22:51:54,989 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i [2022-07-13 22:51:55,014 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47c7e7e16/7f58d7325b1f41e5a531eb88ea4dfc1c/FLAG0db8b861f [2022-07-13 22:51:55,206 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47c7e7e16/7f58d7325b1f41e5a531eb88ea4dfc1c [2022-07-13 22:51:55,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 22:51:55,209 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 22:51:55,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 22:51:55,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 22:51:55,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 22:51:55,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 10:51:55" (1/1) ... [2022-07-13 22:51:55,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@190c4deb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:51:55, skipping insertion in model container [2022-07-13 22:51:55,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 10:51:55" (1/1) ... [2022-07-13 22:51:55,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 22:51:55,295 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 22:51:55,482 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i[4500,4513] [2022-07-13 22:51:55,487 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i[4560,4573] [2022-07-13 22:51:55,886 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:55,887 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:55,887 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:55,887 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:55,888 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:55,896 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:55,896 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:55,897 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:55,897 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:55,899 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:55,900 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:55,901 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:55,901 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:56,071 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-13 22:51:56,072 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-13 22:51:56,073 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-13 22:51:56,073 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-13 22:51:56,074 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-13 22:51:56,075 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-13 22:51:56,075 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-13 22:51:56,075 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-13 22:51:56,076 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-13 22:51:56,076 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-13 22:51:56,144 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-13 22:51:56,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 22:51:56,182 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 22:51:56,202 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i[4500,4513] [2022-07-13 22:51:56,202 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_push_front_harness.i[4560,4573] [2022-07-13 22:51:56,238 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:56,239 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:56,239 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:56,239 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:56,240 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:56,245 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:56,254 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:56,255 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:56,256 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:56,256 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:56,257 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:56,257 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:56,257 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:51:56,294 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-13 22:51:56,295 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-13 22:51:56,296 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-13 22:51:56,296 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-13 22:51:56,301 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-13 22:51:56,303 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-13 22:51:56,303 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-13 22:51:56,304 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-13 22:51:56,304 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-13 22:51:56,305 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-13 22:51:56,331 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-13 22:51:56,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 22:51:56,506 INFO L208 MainTranslator]: Completed translation [2022-07-13 22:51:56,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:51:56 WrapperNode [2022-07-13 22:51:56,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 22:51:56,507 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 22:51:56,507 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 22:51:56,507 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 22:51:56,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:51:56" (1/1) ... [2022-07-13 22:51:56,577 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:51:56" (1/1) ... [2022-07-13 22:51:56,614 INFO L137 Inliner]: procedures = 679, calls = 1048, calls flagged for inlining = 52, calls inlined = 6, statements flattened = 152 [2022-07-13 22:51:56,614 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 22:51:56,615 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 22:51:56,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 22:51:56,615 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 22:51:56,620 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:51:56" (1/1) ... [2022-07-13 22:51:56,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:51:56" (1/1) ... [2022-07-13 22:51:56,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:51:56" (1/1) ... [2022-07-13 22:51:56,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:51:56" (1/1) ... [2022-07-13 22:51:56,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:51:56" (1/1) ... [2022-07-13 22:51:56,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:51:56" (1/1) ... [2022-07-13 22:51:56,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:51:56" (1/1) ... [2022-07-13 22:51:56,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 22:51:56,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 22:51:56,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 22:51:56,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 22:51:56,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:51:56" (1/1) ... [2022-07-13 22:51:56,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 22:51:56,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:51:56,685 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 22:51:56,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 22:51:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 22:51:56,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-13 22:51:56,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-13 22:51:56,727 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2022-07-13 22:51:56,727 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2022-07-13 22:51:56,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-13 22:51:56,728 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2022-07-13 22:51:56,728 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2022-07-13 22:51:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 22:51:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-13 22:51:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_insert_before [2022-07-13 22:51:56,730 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_insert_before [2022-07-13 22:51:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 22:51:56,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 22:51:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-13 22:51:56,730 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-13 22:51:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 22:51:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-13 22:51:56,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-13 22:51:56,731 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-07-13 22:51:56,731 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-07-13 22:51:56,731 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2022-07-13 22:51:56,731 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2022-07-13 22:51:56,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 22:51:56,950 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 22:51:56,951 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 22:51:57,181 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 22:51:57,186 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 22:51:57,191 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-13 22:51:57,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 10:51:57 BoogieIcfgContainer [2022-07-13 22:51:57,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 22:51:57,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 22:51:57,194 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 22:51:57,197 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 22:51:57,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 10:51:55" (1/3) ... [2022-07-13 22:51:57,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cddc661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 10:51:57, skipping insertion in model container [2022-07-13 22:51:57,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:51:56" (2/3) ... [2022-07-13 22:51:57,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cddc661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 10:51:57, skipping insertion in model container [2022-07-13 22:51:57,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 10:51:57" (3/3) ... [2022-07-13 22:51:57,199 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_linked_list_push_front_harness.i [2022-07-13 22:51:57,208 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 22:51:57,213 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 22:51:57,249 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 22:51:57,253 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2297a7c2, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@49ecf89 [2022-07-13 22:51:57,259 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 22:51:57,262 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 67 states have (on average 1.2835820895522387) internal successors, (86), 68 states have internal predecessors, (86), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2022-07-13 22:51:57,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-13 22:51:57,269 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:51:57,270 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:51:57,270 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:51:57,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:51:57,275 INFO L85 PathProgramCache]: Analyzing trace with hash 2111829670, now seen corresponding path program 1 times [2022-07-13 22:51:57,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:51:57,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726691455] [2022-07-13 22:51:57,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:51:57,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:51:57,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:57,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 22:51:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:57,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 22:51:57,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:57,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-13 22:51:57,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:57,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 22:51:57,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:57,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 22:51:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:57,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-13 22:51:57,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:57,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-13 22:51:57,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:57,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-13 22:51:57,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:57,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-13 22:51:57,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:57,695 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-13 22:51:57,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:51:57,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726691455] [2022-07-13 22:51:57,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726691455] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:51:57,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:51:57,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 22:51:57,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444129472] [2022-07-13 22:51:57,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:51:57,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 22:51:57,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:51:57,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 22:51:57,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 22:51:57,739 INFO L87 Difference]: Start difference. First operand has 104 states, 67 states have (on average 1.2835820895522387) internal successors, (86), 68 states have internal predecessors, (86), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 22:51:57,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:51:57,824 INFO L93 Difference]: Finished difference Result 204 states and 302 transitions. [2022-07-13 22:51:57,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 22:51:57,826 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 74 [2022-07-13 22:51:57,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:51:57,836 INFO L225 Difference]: With dead ends: 204 [2022-07-13 22:51:57,836 INFO L226 Difference]: Without dead ends: 103 [2022-07-13 22:51:57,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 22:51:57,844 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 3 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 22:51:57,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 400 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 22:51:57,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-07-13 22:51:57,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 102. [2022-07-13 22:51:57,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 66 states have (on average 1.2272727272727273) internal successors, (81), 67 states have internal predecessors, (81), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-07-13 22:51:57,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 136 transitions. [2022-07-13 22:51:57,885 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 136 transitions. Word has length 74 [2022-07-13 22:51:57,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:51:57,885 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 136 transitions. [2022-07-13 22:51:57,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-13 22:51:57,886 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 136 transitions. [2022-07-13 22:51:57,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-13 22:51:57,888 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:51:57,888 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:51:57,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 22:51:57,888 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:51:57,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:51:57,888 INFO L85 PathProgramCache]: Analyzing trace with hash 358576094, now seen corresponding path program 1 times [2022-07-13 22:51:57,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:51:57,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834478024] [2022-07-13 22:51:57,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:51:57,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:51:57,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:58,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 22:51:58,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:58,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 22:51:58,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:58,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-13 22:51:58,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:58,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 22:51:58,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:58,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 22:51:58,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:58,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-13 22:51:58,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:58,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-13 22:51:58,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:58,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-13 22:51:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:58,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-13 22:51:58,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:58,151 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-13 22:51:58,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:51:58,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834478024] [2022-07-13 22:51:58,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834478024] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 22:51:58,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [328237623] [2022-07-13 22:51:58,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:51:58,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:51:58,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:51:58,155 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:51:58,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 22:51:58,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:58,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 656 conjuncts, 27 conjunts are in the unsatisfiable core [2022-07-13 22:51:58,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:51:58,507 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-07-13 22:51:58,507 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:51:58,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [328237623] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:51:58,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 22:51:58,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 11 [2022-07-13 22:51:58,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827074128] [2022-07-13 22:51:58,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:51:58,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 22:51:58,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:51:58,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 22:51:58,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-07-13 22:51:58,510 INFO L87 Difference]: Start difference. First operand 102 states and 136 transitions. Second operand has 9 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 4 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2022-07-13 22:51:58,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:51:58,720 INFO L93 Difference]: Finished difference Result 194 states and 261 transitions. [2022-07-13 22:51:58,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 22:51:58,730 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 4 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 74 [2022-07-13 22:51:58,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:51:58,734 INFO L225 Difference]: With dead ends: 194 [2022-07-13 22:51:58,734 INFO L226 Difference]: Without dead ends: 106 [2022-07-13 22:51:58,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-07-13 22:51:58,735 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 137 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 22:51:58,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 598 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 22:51:58,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-07-13 22:51:58,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 104. [2022-07-13 22:51:58,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 67 states have (on average 1.2238805970149254) internal successors, (82), 69 states have internal predecessors, (82), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2022-07-13 22:51:58,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 139 transitions. [2022-07-13 22:51:58,746 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 139 transitions. Word has length 74 [2022-07-13 22:51:58,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:51:58,747 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 139 transitions. [2022-07-13 22:51:58,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 4 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2022-07-13 22:51:58,748 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 139 transitions. [2022-07-13 22:51:58,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-13 22:51:58,751 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:51:58,751 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:51:58,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-13 22:51:58,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:51:58,967 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:51:58,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:51:58,968 INFO L85 PathProgramCache]: Analyzing trace with hash 87330846, now seen corresponding path program 1 times [2022-07-13 22:51:58,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:51:58,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532742799] [2022-07-13 22:51:58,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:51:58,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:51:59,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:59,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 22:51:59,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:59,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 22:51:59,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:59,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-13 22:51:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:59,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 22:51:59,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:59,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 22:51:59,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:59,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-13 22:51:59,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:59,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-13 22:51:59,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:59,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-13 22:51:59,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:59,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 22:51:59,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:59,177 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-13 22:51:59,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:51:59,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532742799] [2022-07-13 22:51:59,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532742799] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 22:51:59,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247539941] [2022-07-13 22:51:59,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:51:59,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:51:59,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:51:59,179 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:51:59,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 22:51:59,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:51:59,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 29 conjunts are in the unsatisfiable core [2022-07-13 22:51:59,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:51:59,461 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-07-13 22:51:59,461 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:51:59,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247539941] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:51:59,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 22:51:59,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 12 [2022-07-13 22:51:59,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893509068] [2022-07-13 22:51:59,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:51:59,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 22:51:59,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:51:59,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 22:51:59,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 22:51:59,462 INFO L87 Difference]: Start difference. First operand 104 states and 139 transitions. Second operand has 10 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2022-07-13 22:51:59,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:51:59,709 INFO L93 Difference]: Finished difference Result 199 states and 268 transitions. [2022-07-13 22:51:59,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 22:51:59,709 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 76 [2022-07-13 22:51:59,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:51:59,712 INFO L225 Difference]: With dead ends: 199 [2022-07-13 22:51:59,712 INFO L226 Difference]: Without dead ends: 109 [2022-07-13 22:51:59,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2022-07-13 22:51:59,715 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 140 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 22:51:59,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 696 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 22:51:59,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-07-13 22:51:59,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 105. [2022-07-13 22:51:59,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 68 states have (on average 1.2205882352941178) internal successors, (83), 70 states have internal predecessors, (83), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2022-07-13 22:51:59,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 140 transitions. [2022-07-13 22:51:59,727 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 140 transitions. Word has length 76 [2022-07-13 22:51:59,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:51:59,728 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 140 transitions. [2022-07-13 22:51:59,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2022-07-13 22:51:59,728 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 140 transitions. [2022-07-13 22:51:59,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-13 22:51:59,740 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:51:59,740 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:51:59,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-13 22:51:59,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-07-13 22:51:59,956 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:51:59,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:51:59,956 INFO L85 PathProgramCache]: Analyzing trace with hash 958884107, now seen corresponding path program 1 times [2022-07-13 22:51:59,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:51:59,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535559669] [2022-07-13 22:51:59,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:51:59,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:51:59,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:52:00,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 22:52:00,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:52:00,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 22:52:00,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:52:00,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-13 22:52:00,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:52:00,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-13 22:52:00,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:52:00,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 22:52:00,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:52:00,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-13 22:52:00,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:52:00,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 22:52:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:52:00,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-13 22:52:00,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:52:00,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-13 22:52:00,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:52:00,082 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-13 22:52:00,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:52:00,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535559669] [2022-07-13 22:52:00,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535559669] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:52:00,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:52:00,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 22:52:00,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065831089] [2022-07-13 22:52:00,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:52:00,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 22:52:00,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:52:00,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 22:52:00,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 22:52:00,084 INFO L87 Difference]: Start difference. First operand 105 states and 140 transitions. Second operand has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-13 22:52:00,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:52:00,118 INFO L93 Difference]: Finished difference Result 145 states and 186 transitions. [2022-07-13 22:52:00,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 22:52:00,118 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 78 [2022-07-13 22:52:00,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:52:00,119 INFO L225 Difference]: With dead ends: 145 [2022-07-13 22:52:00,119 INFO L226 Difference]: Without dead ends: 0 [2022-07-13 22:52:00,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-07-13 22:52:00,120 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 36 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 22:52:00,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 228 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 22:52:00,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-13 22:52:00,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-13 22:52:00,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 22:52:00,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-13 22:52:00,121 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2022-07-13 22:52:00,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:52:00,121 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 22:52:00,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-13 22:52:00,122 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-13 22:52:00,122 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-13 22:52:00,124 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 22:52:00,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 22:52:00,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-13 22:52:00,238 INFO L899 garLoopResultBuilder]: For program point aws_linked_list_node_next_is_validFINAL(lines 4715 4719) no Hoare annotation was computed. [2022-07-13 22:52:00,238 INFO L899 garLoopResultBuilder]: For program point aws_linked_list_node_next_is_validEXIT(lines 4715 4719) no Hoare annotation was computed. [2022-07-13 22:52:00,238 INFO L899 garLoopResultBuilder]: For program point L4718(line 4718) no Hoare annotation was computed. [2022-07-13 22:52:00,239 INFO L899 garLoopResultBuilder]: For program point L4718-3(line 4718) no Hoare annotation was computed. [2022-07-13 22:52:00,239 INFO L899 garLoopResultBuilder]: For program point L4718-2(line 4718) no Hoare annotation was computed. [2022-07-13 22:52:00,239 INFO L899 garLoopResultBuilder]: For program point L4718-5(line 4718) no Hoare annotation was computed. [2022-07-13 22:52:00,239 INFO L902 garLoopResultBuilder]: At program point aws_linked_list_node_next_is_validENTRY(lines 4715 4719) the Hoare annotation is: true [2022-07-13 22:52:00,239 INFO L899 garLoopResultBuilder]: For program point aws_linked_list_node_prev_is_validFINAL(lines 4726 4730) no Hoare annotation was computed. [2022-07-13 22:52:00,239 INFO L899 garLoopResultBuilder]: For program point aws_linked_list_node_prev_is_validEXIT(lines 4726 4730) no Hoare annotation was computed. [2022-07-13 22:52:00,239 INFO L899 garLoopResultBuilder]: For program point L4729-2(line 4729) no Hoare annotation was computed. [2022-07-13 22:52:00,239 INFO L899 garLoopResultBuilder]: For program point L4729-3(line 4729) no Hoare annotation was computed. [2022-07-13 22:52:00,240 INFO L899 garLoopResultBuilder]: For program point L4729(line 4729) no Hoare annotation was computed. [2022-07-13 22:52:00,240 INFO L899 garLoopResultBuilder]: For program point L4729-5(line 4729) no Hoare annotation was computed. [2022-07-13 22:52:00,240 INFO L902 garLoopResultBuilder]: At program point aws_linked_list_node_prev_is_validENTRY(lines 4726 4730) the Hoare annotation is: true [2022-07-13 22:52:00,240 INFO L899 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2022-07-13 22:52:00,240 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2022-07-13 22:52:00,240 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2022-07-13 22:52:00,240 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2022-07-13 22:52:00,240 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2022-07-13 22:52:00,240 INFO L902 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2022-07-13 22:52:00,241 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2022-07-13 22:52:00,241 INFO L902 garLoopResultBuilder]: At program point L4923(line 4923) the Hoare annotation is: true [2022-07-13 22:52:00,241 INFO L902 garLoopResultBuilder]: At program point L4922(line 4922) the Hoare annotation is: true [2022-07-13 22:52:00,241 INFO L899 garLoopResultBuilder]: For program point L4923-1(line 4923) no Hoare annotation was computed. [2022-07-13 22:52:00,241 INFO L899 garLoopResultBuilder]: For program point aws_linked_list_insert_beforeFINAL(lines 4909 4924) no Hoare annotation was computed. [2022-07-13 22:52:00,241 INFO L902 garLoopResultBuilder]: At program point L4920-1(line 4920) the Hoare annotation is: true [2022-07-13 22:52:00,241 INFO L899 garLoopResultBuilder]: For program point L4921-2(line 4921) no Hoare annotation was computed. [2022-07-13 22:52:00,241 INFO L899 garLoopResultBuilder]: For program point L4920-2(line 4920) no Hoare annotation was computed. [2022-07-13 22:52:00,242 INFO L902 garLoopResultBuilder]: At program point L4921(line 4921) the Hoare annotation is: true [2022-07-13 22:52:00,242 INFO L902 garLoopResultBuilder]: At program point L4922-1(line 4922) the Hoare annotation is: true [2022-07-13 22:52:00,242 INFO L902 garLoopResultBuilder]: At program point L4920(line 4920) the Hoare annotation is: true [2022-07-13 22:52:00,242 INFO L902 garLoopResultBuilder]: At program point L4921-1(line 4921) the Hoare annotation is: true [2022-07-13 22:52:00,242 INFO L899 garLoopResultBuilder]: For program point L4922-2(line 4922) no Hoare annotation was computed. [2022-07-13 22:52:00,242 INFO L902 garLoopResultBuilder]: At program point L4912-1(line 4912) the Hoare annotation is: true [2022-07-13 22:52:00,242 INFO L899 garLoopResultBuilder]: For program point L4912-2(line 4912) no Hoare annotation was computed. [2022-07-13 22:52:00,242 INFO L902 garLoopResultBuilder]: At program point L4913(lines 4913 4915) the Hoare annotation is: true [2022-07-13 22:52:00,243 INFO L902 garLoopResultBuilder]: At program point L4912(line 4912) the Hoare annotation is: true [2022-07-13 22:52:00,243 INFO L899 garLoopResultBuilder]: For program point L4913-1(lines 4913 4915) no Hoare annotation was computed. [2022-07-13 22:52:00,243 INFO L902 garLoopResultBuilder]: At program point aws_linked_list_insert_beforeENTRY(lines 4909 4924) the Hoare annotation is: true [2022-07-13 22:52:00,243 INFO L899 garLoopResultBuilder]: For program point aws_linked_list_insert_beforeEXIT(lines 4909 4924) no Hoare annotation was computed. [2022-07-13 22:52:00,243 INFO L895 garLoopResultBuilder]: At program point L4990(line 4990) the Hoare annotation is: (and (< 1 |ULTIMATE.start_aws_linked_list_push_front_harness_~#to_add~0#1.base|) (not (= |ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.base| 0)) (< 1 |ULTIMATE.start_aws_linked_list_push_front_~node#1.base|) (not (= |ULTIMATE.start_aws_linked_list_push_front_~list#1.base| 0)) (< 0 |#StackHeapBarrier|)) [2022-07-13 22:52:00,243 INFO L899 garLoopResultBuilder]: For program point L4994-1(line 4994) no Hoare annotation was computed. [2022-07-13 22:52:00,243 INFO L895 garLoopResultBuilder]: At program point L4990-1(line 4990) the Hoare annotation is: (and (< 1 |ULTIMATE.start_aws_linked_list_push_front_harness_~#to_add~0#1.base|) (< 1 |ULTIMATE.start_aws_linked_list_push_front_~node#1.base|) (= |ULTIMATE.start_aws_linked_list_push_front_#t~ret402#1| 0) (< 0 |#StackHeapBarrier|)) [2022-07-13 22:52:00,244 INFO L899 garLoopResultBuilder]: For program point L7389-1(line 7389) no Hoare annotation was computed. [2022-07-13 22:52:00,244 INFO L899 garLoopResultBuilder]: For program point L4990-2(line 4990) no Hoare annotation was computed. [2022-07-13 22:52:00,244 INFO L895 garLoopResultBuilder]: At program point L7389(line 7389) the Hoare annotation is: false [2022-07-13 22:52:00,244 INFO L899 garLoopResultBuilder]: For program point L6754(lines 6754 6778) no Hoare annotation was computed. [2022-07-13 22:52:00,244 INFO L895 garLoopResultBuilder]: At program point L4995(line 4995) the Hoare annotation is: false [2022-07-13 22:52:00,244 INFO L895 garLoopResultBuilder]: At program point L4995-1(line 4995) the Hoare annotation is: false [2022-07-13 22:52:00,244 INFO L895 garLoopResultBuilder]: At program point L4991(lines 4991 4993) the Hoare annotation is: false [2022-07-13 22:52:00,244 INFO L895 garLoopResultBuilder]: At program point L7390(line 7390) the Hoare annotation is: false [2022-07-13 22:52:00,245 INFO L899 garLoopResultBuilder]: For program point L4991-1(lines 4991 4993) no Hoare annotation was computed. [2022-07-13 22:52:00,245 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-13 22:52:00,245 INFO L899 garLoopResultBuilder]: For program point L4995-2(line 4995) no Hoare annotation was computed. [2022-07-13 22:52:00,245 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-13 22:52:00,245 INFO L895 garLoopResultBuilder]: At program point L7386(line 7386) the Hoare annotation is: false [2022-07-13 22:52:00,245 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-13 22:52:00,245 INFO L899 garLoopResultBuilder]: For program point L7390-1(line 7390) no Hoare annotation was computed. [2022-07-13 22:52:00,245 INFO L899 garLoopResultBuilder]: For program point L7386-2(line 7386) no Hoare annotation was computed. [2022-07-13 22:52:00,246 INFO L895 garLoopResultBuilder]: At program point L7386-1(line 7386) the Hoare annotation is: false [2022-07-13 22:52:00,246 INFO L899 garLoopResultBuilder]: For program point L7374(lines 7374 7391) no Hoare annotation was computed. [2022-07-13 22:52:00,246 INFO L899 garLoopResultBuilder]: For program point L6767-4(lines 6767 6774) no Hoare annotation was computed. [2022-07-13 22:52:00,246 INFO L895 garLoopResultBuilder]: At program point L6767-3(lines 6767 6774) the Hoare annotation is: (and (< 1 |ULTIMATE.start_aws_linked_list_push_front_harness_~#to_add~0#1.base|) (not (= |ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.base| 0)) (< 0 |#StackHeapBarrier|)) [2022-07-13 22:52:00,246 INFO L899 garLoopResultBuilder]: For program point L6767-2(lines 6767 6774) no Hoare annotation was computed. [2022-07-13 22:52:00,246 INFO L899 garLoopResultBuilder]: For program point L6755-1(line 6755) no Hoare annotation was computed. [2022-07-13 22:52:00,246 INFO L899 garLoopResultBuilder]: For program point L4996-1(line 4996) no Hoare annotation was computed. [2022-07-13 22:52:00,247 INFO L895 garLoopResultBuilder]: At program point L6755(line 6755) the Hoare annotation is: (and (< 1 |ULTIMATE.start_aws_linked_list_push_front_harness_~#to_add~0#1.base|) (not (= |ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.base| 0)) (< 0 |#StackHeapBarrier|)) [2022-07-13 22:52:00,247 INFO L895 garLoopResultBuilder]: At program point L4996(line 4996) the Hoare annotation is: false [2022-07-13 22:52:00,247 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-13 22:52:00,247 INFO L895 garLoopResultBuilder]: At program point L7387-1(line 7387) the Hoare annotation is: false [2022-07-13 22:52:00,247 INFO L895 garLoopResultBuilder]: At program point L7387(line 7387) the Hoare annotation is: false [2022-07-13 22:52:00,247 INFO L899 garLoopResultBuilder]: For program point L7387-2(line 7387) no Hoare annotation was computed. [2022-07-13 22:52:00,247 INFO L899 garLoopResultBuilder]: For program point L6756-1(line 6756) no Hoare annotation was computed. [2022-07-13 22:52:00,248 INFO L895 garLoopResultBuilder]: At program point L6756(line 6756) the Hoare annotation is: (and (< 1 |ULTIMATE.start_aws_linked_list_push_front_harness_~#to_add~0#1.base|) (not (= |ULTIMATE.start_aws_linked_list_push_front_harness_~#list~0#1.base| 0)) (< 0 |#StackHeapBarrier|)) [2022-07-13 22:52:00,248 INFO L902 garLoopResultBuilder]: At program point L7392(line 7392) the Hoare annotation is: true [2022-07-13 22:52:00,248 INFO L899 garLoopResultBuilder]: For program point L7388-2(line 7388) no Hoare annotation was computed. [2022-07-13 22:52:00,248 INFO L895 garLoopResultBuilder]: At program point L7388-1(line 7388) the Hoare annotation is: false [2022-07-13 22:52:00,248 INFO L899 garLoopResultBuilder]: For program point L4989(lines 4989 4997) no Hoare annotation was computed. [2022-07-13 22:52:00,248 INFO L895 garLoopResultBuilder]: At program point L7388(line 7388) the Hoare annotation is: false [2022-07-13 22:52:00,248 INFO L895 garLoopResultBuilder]: At program point L4994(line 4994) the Hoare annotation is: false [2022-07-13 22:52:00,248 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2022-07-13 22:52:00,249 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2022-07-13 22:52:00,249 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2022-07-13 22:52:00,249 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2022-07-13 22:52:00,249 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2022-07-13 22:52:00,249 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2022-07-13 22:52:00,249 INFO L899 garLoopResultBuilder]: For program point L4734(lines 4734 4738) no Hoare annotation was computed. [2022-07-13 22:52:00,249 INFO L899 garLoopResultBuilder]: For program point L4751(lines 4751 4761) no Hoare annotation was computed. [2022-07-13 22:52:00,250 INFO L895 garLoopResultBuilder]: At program point L4764(lines 4731 4765) the Hoare annotation is: (or (and (= |aws_linked_list_is_valid_#in~list#1.base| 0) (= |aws_linked_list_is_valid_#in~list#1.base| |aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base|) (= |aws_linked_list_is_valid_#in~list#1.base| |aws_linked_list_is_valid_~list#1.base|)) (not (< 0 |#StackHeapBarrier|)) (= |aws_linked_list_is_valid_aws_linked_list_is_valid_deep_#res#1| 0)) [2022-07-13 22:52:00,250 INFO L899 garLoopResultBuilder]: For program point L4694(line 4694) no Hoare annotation was computed. [2022-07-13 22:52:00,250 INFO L899 garLoopResultBuilder]: For program point L4694-3(lines 4694 4695) no Hoare annotation was computed. [2022-07-13 22:52:00,250 INFO L899 garLoopResultBuilder]: For program point L4756-1(lines 4756 4761) no Hoare annotation was computed. [2022-07-13 22:52:00,250 INFO L899 garLoopResultBuilder]: For program point L4694-2(line 4694) no Hoare annotation was computed. [2022-07-13 22:52:00,250 INFO L895 garLoopResultBuilder]: At program point L4756(line 4756) the Hoare annotation is: (or (and (= |aws_linked_list_is_valid_#in~list#1.base| 0) (= |aws_linked_list_is_valid_#in~list#1.base| |aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base|) (= |aws_linked_list_is_valid_#in~list#1.base| |aws_linked_list_is_valid_~list#1.base|)) (not (< 0 |#StackHeapBarrier|))) [2022-07-13 22:52:00,250 INFO L899 garLoopResultBuilder]: For program point L4694-8(lines 4694 4696) no Hoare annotation was computed. [2022-07-13 22:52:00,251 INFO L899 garLoopResultBuilder]: For program point L4694-5(lines 4694 4695) no Hoare annotation was computed. [2022-07-13 22:52:00,251 INFO L899 garLoopResultBuilder]: For program point L4694-6(lines 4694 4696) no Hoare annotation was computed. [2022-07-13 22:52:00,251 INFO L899 garLoopResultBuilder]: For program point L4694-11(lines 4694 4704) no Hoare annotation was computed. [2022-07-13 22:52:00,251 INFO L899 garLoopResultBuilder]: For program point L4694-9(lines 4694 4697) no Hoare annotation was computed. [2022-07-13 22:52:00,251 INFO L899 garLoopResultBuilder]: For program point aws_linked_list_is_validEXIT(lines 4691 4708) no Hoare annotation was computed. [2022-07-13 22:52:00,251 INFO L902 garLoopResultBuilder]: At program point aws_linked_list_is_validENTRY(lines 4691 4708) the Hoare annotation is: true [2022-07-13 22:52:00,251 INFO L899 garLoopResultBuilder]: For program point aws_linked_list_is_validFINAL(lines 4691 4708) no Hoare annotation was computed. [2022-07-13 22:52:00,252 INFO L899 garLoopResultBuilder]: For program point L4750-3(lines 4750 4763) no Hoare annotation was computed. [2022-07-13 22:52:00,252 INFO L895 garLoopResultBuilder]: At program point L4750-2(lines 4750 4763) the Hoare annotation is: (or (and (= |aws_linked_list_is_valid_#in~list#1.base| 0) (= |aws_linked_list_is_valid_#in~list#1.base| |aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~list#1.base|) (= |aws_linked_list_is_valid_#in~list#1.base| |aws_linked_list_is_valid_~list#1.base|)) (not (< 0 |#StackHeapBarrier|))) [2022-07-13 22:52:00,254 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-07-13 22:52:00,256 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 22:52:00,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 10:52:00 BoogieIcfgContainer [2022-07-13 22:52:00,269 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 22:52:00,269 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 22:52:00,270 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 22:52:00,270 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 22:52:00,270 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 10:51:57" (3/4) ... [2022-07-13 22:52:00,272 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-13 22:52:00,277 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_node_next_is_valid [2022-07-13 22:52:00,277 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2022-07-13 22:52:00,277 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_node_prev_is_valid [2022-07-13 22:52:00,277 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_insert_before [2022-07-13 22:52:00,278 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-07-13 22:52:00,278 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-07-13 22:52:00,278 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_linked_list_is_valid [2022-07-13 22:52:00,282 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2022-07-13 22:52:00,283 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-07-13 22:52:00,283 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-13 22:52:00,283 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-13 22:52:00,304 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((list == 0 && list == list) && list == list) || !(0 < unknown-#StackHeapBarrier-unknown)) || \result == 0 [2022-07-13 22:52:00,329 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 22:52:00,329 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 22:52:00,330 INFO L158 Benchmark]: Toolchain (without parser) took 5120.33ms. Allocated memory was 111.1MB in the beginning and 186.6MB in the end (delta: 75.5MB). Free memory was 68.5MB in the beginning and 56.1MB in the end (delta: 12.4MB). Peak memory consumption was 86.9MB. Max. memory is 16.1GB. [2022-07-13 22:52:00,330 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 111.1MB. Free memory was 83.1MB in the beginning and 83.0MB in the end (delta: 30.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 22:52:00,330 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1294.23ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 68.4MB in the beginning and 68.4MB in the end (delta: -12.7kB). Peak memory consumption was 41.8MB. Max. memory is 16.1GB. [2022-07-13 22:52:00,331 INFO L158 Benchmark]: Boogie Procedure Inliner took 107.11ms. Allocated memory is still 134.2MB. Free memory was 68.4MB in the beginning and 62.8MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-13 22:52:00,331 INFO L158 Benchmark]: Boogie Preprocessor took 39.55ms. Allocated memory is still 134.2MB. Free memory was 62.8MB in the beginning and 59.3MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 22:52:00,331 INFO L158 Benchmark]: RCFGBuilder took 538.38ms. Allocated memory is still 134.2MB. Free memory was 59.3MB in the beginning and 71.2MB in the end (delta: -11.9MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2022-07-13 22:52:00,332 INFO L158 Benchmark]: TraceAbstraction took 3074.88ms. Allocated memory was 134.2MB in the beginning and 186.6MB in the end (delta: 52.4MB). Free memory was 70.5MB in the beginning and 61.4MB in the end (delta: 9.1MB). Peak memory consumption was 61.2MB. Max. memory is 16.1GB. [2022-07-13 22:52:00,332 INFO L158 Benchmark]: Witness Printer took 59.84ms. Allocated memory is still 186.6MB. Free memory was 61.4MB in the beginning and 56.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-13 22:52:00,333 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 111.1MB. Free memory was 83.1MB in the beginning and 83.0MB in the end (delta: 30.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1294.23ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 68.4MB in the beginning and 68.4MB in the end (delta: -12.7kB). Peak memory consumption was 41.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 107.11ms. Allocated memory is still 134.2MB. Free memory was 68.4MB in the beginning and 62.8MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.55ms. Allocated memory is still 134.2MB. Free memory was 62.8MB in the beginning and 59.3MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 538.38ms. Allocated memory is still 134.2MB. Free memory was 59.3MB in the beginning and 71.2MB in the end (delta: -11.9MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * TraceAbstraction took 3074.88ms. Allocated memory was 134.2MB in the beginning and 186.6MB in the end (delta: 52.4MB). Free memory was 70.5MB in the beginning and 61.4MB in the end (delta: 9.1MB). Peak memory consumption was 61.2MB. Max. memory is 16.1GB. * Witness Printer took 59.84ms. Allocated memory is still 186.6MB. Free memory was 61.4MB in the beginning and 56.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 104 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 4, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 320 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 316 mSDsluCounter, 1922 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1520 mSDsCounter, 126 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 446 IncrementalHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 126 mSolverCounterUnsat, 402 mSDtfsCounter, 446 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 267 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=3, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 39 LocationsWithAnnotation, 194 PreInvPairs, 204 NumberOfFragments, 143 HoareAnnotationTreeSize, 194 FomulaSimplifications, 55 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 39 FomulaSimplificationsInter, 91 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 452 NumberOfCodeBlocks, 452 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 446 ConstructedInterpolants, 0 QuantifiedInterpolants, 632 SizeOfPredicates, 11 NumberOfNonLiveVariables, 1333 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 264/282 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 4750]: Loop Invariant Derived loop invariant: ((list == 0 && list == list) && list == list) || !(0 < unknown-#StackHeapBarrier-unknown) - InvariantResult [Line: 4731]: Loop Invariant Derived loop invariant: (((list == 0 && list == list) && list == list) || !(0 < unknown-#StackHeapBarrier-unknown)) || \result == 0 - InvariantResult [Line: 7392]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6767]: Loop Invariant Derived loop invariant: (1 < to_add && !(list == 0)) && 0 < unknown-#StackHeapBarrier-unknown RESULT: Ultimate proved your program to be correct! [2022-07-13 22:52:00,369 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