./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_linked_list_pop_front_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_linked_list_pop_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 edd3fac09d24fc037292743bb080afb788cb886b05d29648be5f73c1396cfbb6 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 22:13:41,576 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 22:13:41,577 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 22:13:41,610 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 22:13:41,611 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 22:13:41,612 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 22:13:41,613 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 22:13:41,615 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 22:13:41,616 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 22:13:41,619 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 22:13:41,619 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 22:13:41,621 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 22:13:41,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 22:13:41,622 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 22:13:41,623 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 22:13:41,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 22:13:41,626 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 22:13:41,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 22:13:41,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 22:13:41,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 22:13:41,633 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 22:13:41,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 22:13:41,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 22:13:41,635 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 22:13:41,636 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 22:13:41,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 22:13:41,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 22:13:41,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 22:13:41,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 22:13:41,642 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 22:13:41,643 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 22:13:41,643 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 22:13:41,644 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 22:13:41,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 22:13:41,645 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 22:13:41,646 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 22:13:41,647 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 22:13:41,647 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 22:13:41,647 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 22:13:41,647 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 22:13:41,648 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 22:13:41,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 22:13:41,650 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-19 22:13:41,671 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 22:13:41,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 22:13:41,672 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 22:13:41,672 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 22:13:41,673 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 22:13:41,673 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 22:13:41,673 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 22:13:41,673 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 22:13:41,673 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 22:13:41,674 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 22:13:41,674 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 22:13:41,674 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 22:13:41,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 22:13:41,675 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 22:13:41,675 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 22:13:41,675 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 22:13:41,675 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 22:13:41,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 22:13:41,675 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 22:13:41,676 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 22:13:41,676 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 22:13:41,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 22:13:41,676 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 22:13:41,676 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 22:13:41,676 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 22:13:41,677 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 22:13:41,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 22:13:41,677 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 22:13:41,677 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 22:13:41,677 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 22:13:41,677 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edd3fac09d24fc037292743bb080afb788cb886b05d29648be5f73c1396cfbb6 [2022-07-19 22:13:41,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 22:13:41,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 22:13:41,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 22:13:41,895 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 22:13:41,895 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 22:13:41,896 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_linked_list_pop_front_harness.i [2022-07-19 22:13:41,950 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e04ad9296/1c846b0d5355477f97f753e217d59d98/FLAGd177e9d1a [2022-07-19 22:13:42,441 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 22:13:42,442 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_pop_front_harness.i [2022-07-19 22:13:42,477 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e04ad9296/1c846b0d5355477f97f753e217d59d98/FLAGd177e9d1a [2022-07-19 22:13:42,687 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e04ad9296/1c846b0d5355477f97f753e217d59d98 [2022-07-19 22:13:42,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 22:13:42,690 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 22:13:42,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 22:13:42,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 22:13:42,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 22:13:42,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:13:42" (1/1) ... [2022-07-19 22:13:42,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70decf31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:13:42, skipping insertion in model container [2022-07-19 22:13:42,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:13:42" (1/1) ... [2022-07-19 22:13:42,703 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 22:13:42,774 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 22:13:42,958 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_pop_front_harness.i[4499,4512] [2022-07-19 22:13:42,964 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_pop_front_harness.i[4559,4572] [2022-07-19 22:13:43,379 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:43,384 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:43,385 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:43,385 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:43,386 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:43,394 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:43,396 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:43,400 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:43,401 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:43,402 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:43,403 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:43,403 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:43,404 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:43,578 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-19 22:13:43,578 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-19 22:13:43,579 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-19 22:13:43,580 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-19 22:13:43,580 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-19 22:13:43,581 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-19 22:13:43,581 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-19 22:13:43,581 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-19 22:13:43,582 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-19 22:13:43,582 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-19 22:13:43,645 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-19 22:13:43,661 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 22:13:43,675 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 22:13:43,690 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_pop_front_harness.i[4499,4512] [2022-07-19 22:13:43,690 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_pop_front_harness.i[4559,4572] [2022-07-19 22:13:43,730 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:43,730 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:43,730 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:43,731 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:43,732 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:43,742 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:43,743 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:43,744 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:43,744 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:43,745 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:43,745 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:43,745 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:43,745 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:43,762 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-19 22:13:43,767 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-19 22:13:43,767 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-19 22:13:43,768 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-19 22:13:43,771 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-19 22:13:43,771 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-19 22:13:43,772 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-19 22:13:43,772 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-19 22:13:43,772 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-19 22:13:43,773 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-19 22:13:43,784 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-19 22:13:43,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 22:13:43,935 INFO L208 MainTranslator]: Completed translation [2022-07-19 22:13:43,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:13:43 WrapperNode [2022-07-19 22:13:43,936 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 22:13:43,936 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 22:13:43,936 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 22:13:43,937 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 22:13:43,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:13:43" (1/1) ... [2022-07-19 22:13:44,037 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:13:43" (1/1) ... [2022-07-19 22:13:44,087 INFO L137 Inliner]: procedures = 679, calls = 1046, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 225 [2022-07-19 22:13:44,089 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 22:13:44,090 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 22:13:44,090 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 22:13:44,090 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 22:13:44,096 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:13:43" (1/1) ... [2022-07-19 22:13:44,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:13:43" (1/1) ... [2022-07-19 22:13:44,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:13:43" (1/1) ... [2022-07-19 22:13:44,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:13:43" (1/1) ... [2022-07-19 22:13:44,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:13:43" (1/1) ... [2022-07-19 22:13:44,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:13:43" (1/1) ... [2022-07-19 22:13:44,142 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:13:43" (1/1) ... [2022-07-19 22:13:44,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 22:13:44,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 22:13:44,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 22:13:44,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 22:13:44,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:13:43" (1/1) ... [2022-07-19 22:13:44,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 22:13:44,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:13:44,178 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 22:13:44,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 22:13:44,221 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-07-19 22:13:44,221 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-07-19 22:13:44,221 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_remove [2022-07-19 22:13:44,222 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_remove [2022-07-19 22:13:44,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 22:13:44,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 22:13:44,223 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-19 22:13:44,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-19 22:13:44,223 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2022-07-19 22:13:44,223 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2022-07-19 22:13:44,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-19 22:13:44,224 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2022-07-19 22:13:44,224 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2022-07-19 22:13:44,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 22:13:44,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-19 22:13:44,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 22:13:44,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 22:13:44,224 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_empty [2022-07-19 22:13:44,224 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_empty [2022-07-19 22:13:44,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-19 22:13:44,225 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-19 22:13:44,225 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-19 22:13:44,225 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-19 22:13:44,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 22:13:44,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-19 22:13:44,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-19 22:13:44,225 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-07-19 22:13:44,226 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-07-19 22:13:44,226 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2022-07-19 22:13:44,226 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2022-07-19 22:13:44,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 22:13:44,453 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 22:13:44,454 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 22:13:44,683 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 22:13:44,688 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 22:13:44,688 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-07-19 22:13:44,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:13:44 BoogieIcfgContainer [2022-07-19 22:13:44,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 22:13:44,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 22:13:44,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 22:13:44,693 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 22:13:44,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 10:13:42" (1/3) ... [2022-07-19 22:13:44,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@556beeea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:13:44, skipping insertion in model container [2022-07-19 22:13:44,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:13:43" (2/3) ... [2022-07-19 22:13:44,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@556beeea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:13:44, skipping insertion in model container [2022-07-19 22:13:44,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:13:44" (3/3) ... [2022-07-19 22:13:44,695 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_linked_list_pop_front_harness.i [2022-07-19 22:13:44,704 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 22:13:44,704 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 22:13:44,734 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 22:13:44,738 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@25929c40, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@10af09e1 [2022-07-19 22:13:44,739 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 22:13:44,742 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 89 states have (on average 1.303370786516854) internal successors, (116), 90 states have internal predecessors, (116), 37 states have call successors, (37), 10 states have call predecessors, (37), 10 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2022-07-19 22:13:44,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-19 22:13:44,750 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:13:44,750 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:13:44,751 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:13:44,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:13:44,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1579343520, now seen corresponding path program 1 times [2022-07-19 22:13:44,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:13:44,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906411108] [2022-07-19 22:13:44,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:13:44,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:13:44,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:45,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 22:13:45,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:45,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 22:13:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:45,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 22:13:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:45,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:13:45,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:45,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 22:13:45,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:45,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 22:13:45,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:45,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:13:45,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:45,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-19 22:13:45,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:45,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 22:13:45,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:45,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-19 22:13:45,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:45,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-19 22:13:45,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:45,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-19 22:13:45,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:45,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-19 22:13:45,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:45,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:13:45,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:45,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-19 22:13:45,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:45,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 22:13:45,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:45,242 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2022-07-19 22:13:45,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:13:45,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906411108] [2022-07-19 22:13:45,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906411108] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 22:13:45,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550938465] [2022-07-19 22:13:45,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:13:45,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:13:45,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:13:45,245 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 22:13:45,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-19 22:13:45,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:45,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 22:13:45,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:13:45,424 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-07-19 22:13:45,424 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:13:45,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550938465] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:13:45,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 22:13:45,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2022-07-19 22:13:45,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918682669] [2022-07-19 22:13:45,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:13:45,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 22:13:45,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:13:45,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 22:13:45,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 22:13:45,449 INFO L87 Difference]: Start difference. First operand has 137 states, 89 states have (on average 1.303370786516854) internal successors, (116), 90 states have internal predecessors, (116), 37 states have call successors, (37), 10 states have call predecessors, (37), 10 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-19 22:13:45,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:13:45,524 INFO L93 Difference]: Finished difference Result 274 states and 414 transitions. [2022-07-19 22:13:45,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 22:13:45,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 116 [2022-07-19 22:13:45,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:13:45,538 INFO L225 Difference]: With dead ends: 274 [2022-07-19 22:13:45,542 INFO L226 Difference]: Without dead ends: 140 [2022-07-19 22:13:45,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 22:13:45,552 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 12 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 22:13:45,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 536 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 22:13:45,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-07-19 22:13:45,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 134. [2022-07-19 22:13:45,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 86 states have (on average 1.244186046511628) internal successors, (107), 87 states have internal predecessors, (107), 37 states have call successors, (37), 10 states have call predecessors, (37), 10 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2022-07-19 22:13:45,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 180 transitions. [2022-07-19 22:13:45,610 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 180 transitions. Word has length 116 [2022-07-19 22:13:45,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:13:45,611 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 180 transitions. [2022-07-19 22:13:45,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-19 22:13:45,612 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 180 transitions. [2022-07-19 22:13:45,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-19 22:13:45,619 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:13:45,619 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:13:45,638 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-19 22:13:45,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-07-19 22:13:45,838 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:13:45,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:13:45,839 INFO L85 PathProgramCache]: Analyzing trace with hash -183799078, now seen corresponding path program 1 times [2022-07-19 22:13:45,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:13:45,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651287782] [2022-07-19 22:13:45,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:13:45,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:13:45,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:45,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 22:13:45,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:45,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 22:13:45,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:45,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 22:13:45,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:45,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:13:45,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:45,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 22:13:45,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:45,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 22:13:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:45,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:13:45,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:45,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-19 22:13:45,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:45,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 22:13:45,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:46,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-19 22:13:46,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:46,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-19 22:13:46,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:46,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-19 22:13:46,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:46,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-19 22:13:46,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:46,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:13:46,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:46,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-19 22:13:46,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:46,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 22:13:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:46,075 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2022-07-19 22:13:46,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:13:46,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651287782] [2022-07-19 22:13:46,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651287782] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 22:13:46,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354831484] [2022-07-19 22:13:46,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:13:46,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:13:46,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:13:46,078 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 22:13:46,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-19 22:13:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:46,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 22:13:46,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:13:46,281 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-07-19 22:13:46,282 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:13:46,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1354831484] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:13:46,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 22:13:46,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2022-07-19 22:13:46,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670787221] [2022-07-19 22:13:46,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:13:46,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 22:13:46,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:13:46,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 22:13:46,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 22:13:46,284 INFO L87 Difference]: Start difference. First operand 134 states and 180 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-19 22:13:46,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:13:46,307 INFO L93 Difference]: Finished difference Result 252 states and 345 transitions. [2022-07-19 22:13:46,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 22:13:46,307 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 116 [2022-07-19 22:13:46,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:13:46,309 INFO L225 Difference]: With dead ends: 252 [2022-07-19 22:13:46,309 INFO L226 Difference]: Without dead ends: 138 [2022-07-19 22:13:46,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 22:13:46,310 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 3 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 520 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 [2022-07-19 22:13:46,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 520 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 22:13:46,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-07-19 22:13:46,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 137. [2022-07-19 22:13:46,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 89 states have (on average 1.2359550561797752) internal successors, (110), 90 states have internal predecessors, (110), 37 states have call successors, (37), 10 states have call predecessors, (37), 10 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2022-07-19 22:13:46,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 183 transitions. [2022-07-19 22:13:46,318 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 183 transitions. Word has length 116 [2022-07-19 22:13:46,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:13:46,319 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 183 transitions. [2022-07-19 22:13:46,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-19 22:13:46,319 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 183 transitions. [2022-07-19 22:13:46,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-19 22:13:46,320 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:13:46,320 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:13:46,339 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-07-19 22:13:46,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-07-19 22:13:46,537 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:13:46,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:13:46,538 INFO L85 PathProgramCache]: Analyzing trace with hash -543175276, now seen corresponding path program 1 times [2022-07-19 22:13:46,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:13:46,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751365004] [2022-07-19 22:13:46,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:13:46,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:13:46,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:46,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 22:13:46,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:46,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 22:13:46,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:46,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 22:13:46,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:46,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:13:46,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:46,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 22:13:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:46,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 22:13:46,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:46,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:13:46,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:46,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-19 22:13:46,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:46,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 22:13:46,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:46,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-19 22:13:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:46,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-19 22:13:46,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:46,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-19 22:13:46,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:46,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-19 22:13:46,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:46,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:13:46,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:46,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-19 22:13:46,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:46,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 22:13:46,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:46,870 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2022-07-19 22:13:46,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:13:46,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751365004] [2022-07-19 22:13:46,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751365004] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 22:13:46,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756982067] [2022-07-19 22:13:46,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:13:46,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:13:46,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:13:46,872 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 22:13:46,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-19 22:13:46,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:47,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 48 conjunts are in the unsatisfiable core [2022-07-19 22:13:47,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:13:47,058 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2022-07-19 22:13:47,499 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-07-19 22:13:47,499 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:13:47,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756982067] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:13:47,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 22:13:47,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [10] total 18 [2022-07-19 22:13:47,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825661876] [2022-07-19 22:13:47,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:13:47,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 22:13:47,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:13:47,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 22:13:47,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2022-07-19 22:13:47,501 INFO L87 Difference]: Start difference. First operand 137 states and 183 transitions. Second operand has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 6 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2022-07-19 22:13:47,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:13:47,621 INFO L93 Difference]: Finished difference Result 327 states and 442 transitions. [2022-07-19 22:13:47,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 22:13:47,621 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 6 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) Word has length 116 [2022-07-19 22:13:47,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:13:47,624 INFO L225 Difference]: With dead ends: 327 [2022-07-19 22:13:47,624 INFO L226 Difference]: Without dead ends: 213 [2022-07-19 22:13:47,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 130 SyntacticMatches, 13 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-07-19 22:13:47,625 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 58 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 104 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 22:13:47,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 769 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 104 Unchecked, 0.1s Time] [2022-07-19 22:13:47,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-07-19 22:13:47,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 179. [2022-07-19 22:13:47,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 119 states have (on average 1.2100840336134453) internal successors, (144), 122 states have internal predecessors, (144), 45 states have call successors, (45), 13 states have call predecessors, (45), 14 states have return successors, (47), 43 states have call predecessors, (47), 44 states have call successors, (47) [2022-07-19 22:13:47,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 236 transitions. [2022-07-19 22:13:47,636 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 236 transitions. Word has length 116 [2022-07-19 22:13:47,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:13:47,637 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 236 transitions. [2022-07-19 22:13:47,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 6 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 6 states have call successors, (15) [2022-07-19 22:13:47,637 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 236 transitions. [2022-07-19 22:13:47,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-19 22:13:47,638 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:13:47,638 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:13:47,656 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-07-19 22:13:47,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:13:47,856 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:13:47,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:13:47,856 INFO L85 PathProgramCache]: Analyzing trace with hash -670206630, now seen corresponding path program 1 times [2022-07-19 22:13:47,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:13:47,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940100921] [2022-07-19 22:13:47,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:13:47,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:13:47,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:47,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 22:13:47,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:47,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 22:13:47,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:47,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 22:13:47,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:47,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:13:47,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:47,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 22:13:47,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:47,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 22:13:47,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:47,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:13:47,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:47,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-19 22:13:47,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:47,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 22:13:47,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:48,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-19 22:13:48,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:48,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-19 22:13:48,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:48,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-19 22:13:48,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:48,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-19 22:13:48,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:48,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:13:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:48,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-19 22:13:48,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:48,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 22:13:48,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:48,194 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2022-07-19 22:13:48,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:13:48,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940100921] [2022-07-19 22:13:48,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940100921] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 22:13:48,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967356210] [2022-07-19 22:13:48,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:13:48,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:13:48,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:13:48,196 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 22:13:48,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-19 22:13:48,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:48,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 54 conjunts are in the unsatisfiable core [2022-07-19 22:13:48,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:13:48,367 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-19 22:13:48,368 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-07-19 22:13:48,378 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-19 22:13:48,378 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-07-19 22:13:49,034 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 107 proven. 7 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-07-19 22:13:49,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 22:13:49,356 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2022-07-19 22:13:49,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967356210] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 22:13:49,357 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 22:13:49,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 16, 11] total 29 [2022-07-19 22:13:49,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038543636] [2022-07-19 22:13:49,357 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 22:13:49,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-07-19 22:13:49,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:13:49,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-07-19 22:13:49,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=714, Unknown=0, NotChecked=0, Total=812 [2022-07-19 22:13:49,358 INFO L87 Difference]: Start difference. First operand 179 states and 236 transitions. Second operand has 29 states, 27 states have (on average 3.5185185185185186) internal successors, (95), 28 states have internal predecessors, (95), 11 states have call successors, (35), 3 states have call predecessors, (35), 5 states have return successors, (35), 9 states have call predecessors, (35), 11 states have call successors, (35) [2022-07-19 22:13:50,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:13:50,922 INFO L93 Difference]: Finished difference Result 436 states and 617 transitions. [2022-07-19 22:13:50,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-07-19 22:13:50,922 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 3.5185185185185186) internal successors, (95), 28 states have internal predecessors, (95), 11 states have call successors, (35), 3 states have call predecessors, (35), 5 states have return successors, (35), 9 states have call predecessors, (35), 11 states have call successors, (35) Word has length 116 [2022-07-19 22:13:50,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:13:50,925 INFO L225 Difference]: With dead ends: 436 [2022-07-19 22:13:50,925 INFO L226 Difference]: Without dead ends: 314 [2022-07-19 22:13:50,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 244 SyntacticMatches, 8 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 657 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=399, Invalid=2463, Unknown=0, NotChecked=0, Total=2862 [2022-07-19 22:13:50,927 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 302 mSDsluCounter, 2742 mSDsCounter, 0 mSdLazyCounter, 1437 mSolverCounterSat, 292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 3010 SdHoareTripleChecker+Invalid, 2107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 292 IncrementalHoareTripleChecker+Valid, 1437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 378 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-19 22:13:50,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 3010 Invalid, 2107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [292 Valid, 1437 Invalid, 0 Unknown, 378 Unchecked, 0.8s Time] [2022-07-19 22:13:50,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-07-19 22:13:50,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 226. [2022-07-19 22:13:50,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 149 states have (on average 1.1812080536912752) internal successors, (176), 152 states have internal predecessors, (176), 58 states have call successors, (58), 17 states have call predecessors, (58), 18 states have return successors, (73), 56 states have call predecessors, (73), 57 states have call successors, (73) [2022-07-19 22:13:50,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 307 transitions. [2022-07-19 22:13:50,946 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 307 transitions. Word has length 116 [2022-07-19 22:13:50,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:13:50,947 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 307 transitions. [2022-07-19 22:13:50,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 3.5185185185185186) internal successors, (95), 28 states have internal predecessors, (95), 11 states have call successors, (35), 3 states have call predecessors, (35), 5 states have return successors, (35), 9 states have call predecessors, (35), 11 states have call successors, (35) [2022-07-19 22:13:50,947 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 307 transitions. [2022-07-19 22:13:50,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-19 22:13:50,948 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:13:50,949 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-19 22:13:50,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-19 22:13:51,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:13:51,165 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:13:51,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:13:51,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1395986770, now seen corresponding path program 1 times [2022-07-19 22:13:51,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:13:51,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345024469] [2022-07-19 22:13:51,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:13:51,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:13:51,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:51,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 22:13:51,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:51,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 22:13:51,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:51,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 22:13:51,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:51,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:13:51,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:51,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 22:13:51,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:51,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 22:13:51,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:51,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:13:51,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:51,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-19 22:13:51,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:51,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 22:13:51,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:51,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-19 22:13:51,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:51,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-19 22:13:51,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:51,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-19 22:13:51,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:51,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-19 22:13:51,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:51,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:13:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:51,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-19 22:13:51,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:51,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 22:13:51,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:51,395 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2022-07-19 22:13:51,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:13:51,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345024469] [2022-07-19 22:13:51,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345024469] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 22:13:51,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699925577] [2022-07-19 22:13:51,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:13:51,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:13:51,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:13:51,398 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 22:13:51,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-19 22:13:51,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:51,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-19 22:13:51,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:13:51,634 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-07-19 22:13:51,635 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:13:51,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699925577] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:13:51,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 22:13:51,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2022-07-19 22:13:51,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384484394] [2022-07-19 22:13:51,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:13:51,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 22:13:51,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:13:51,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 22:13:51,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-07-19 22:13:51,637 INFO L87 Difference]: Start difference. First operand 226 states and 307 transitions. Second operand has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 5 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 4 states have call predecessors, (15), 5 states have call successors, (15) [2022-07-19 22:13:51,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:13:51,808 INFO L93 Difference]: Finished difference Result 417 states and 561 transitions. [2022-07-19 22:13:51,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 22:13:51,809 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 5 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 4 states have call predecessors, (15), 5 states have call successors, (15) Word has length 116 [2022-07-19 22:13:51,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:13:51,811 INFO L225 Difference]: With dead ends: 417 [2022-07-19 22:13:51,811 INFO L226 Difference]: Without dead ends: 187 [2022-07-19 22:13:51,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=352, Unknown=0, NotChecked=0, Total=420 [2022-07-19 22:13:51,814 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 244 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 22:13:51,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 724 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 22:13:51,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-07-19 22:13:51,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 183. [2022-07-19 22:13:51,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 117 states have (on average 1.1794871794871795) internal successors, (138), 119 states have internal predecessors, (138), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (53), 48 states have call predecessors, (53), 49 states have call successors, (53) [2022-07-19 22:13:51,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 241 transitions. [2022-07-19 22:13:51,836 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 241 transitions. Word has length 116 [2022-07-19 22:13:51,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:13:51,838 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 241 transitions. [2022-07-19 22:13:51,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 5 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 4 states have call predecessors, (15), 5 states have call successors, (15) [2022-07-19 22:13:51,838 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 241 transitions. [2022-07-19 22:13:51,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-19 22:13:51,840 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:13:51,840 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:13:51,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-19 22:13:52,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:13:52,058 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:13:52,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:13:52,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1369878566, now seen corresponding path program 2 times [2022-07-19 22:13:52,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:13:52,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99743003] [2022-07-19 22:13:52,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:13:52,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:13:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:52,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 22:13:52,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:52,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 22:13:52,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:52,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 22:13:52,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:52,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:13:52,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:52,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 22:13:52,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:52,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 22:13:52,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:52,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:13:52,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:52,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-19 22:13:52,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:52,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 22:13:52,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:52,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-19 22:13:52,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:52,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-19 22:13:52,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:52,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-19 22:13:52,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:52,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-19 22:13:52,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:52,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:13:52,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:52,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-19 22:13:52,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:52,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 22:13:52,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:52,346 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2022-07-19 22:13:52,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:13:52,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99743003] [2022-07-19 22:13:52,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99743003] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 22:13:52,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957844115] [2022-07-19 22:13:52,347 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-19 22:13:52,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:13:52,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:13:52,348 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 22:13:52,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-19 22:13:52,475 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-19 22:13:52,476 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 22:13:52,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 54 conjunts are in the unsatisfiable core [2022-07-19 22:13:52,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:13:52,512 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-19 22:13:52,513 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-07-19 22:13:52,522 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-19 22:13:52,522 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-07-19 22:13:53,303 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 105 proven. 17 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-07-19 22:13:53,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 22:13:53,642 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 10 proven. 20 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2022-07-19 22:13:53,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957844115] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 22:13:53,643 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 22:13:53,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 16, 12] total 28 [2022-07-19 22:13:53,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875787299] [2022-07-19 22:13:53,643 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 22:13:53,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-07-19 22:13:53,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:13:53,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-07-19 22:13:53,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=658, Unknown=0, NotChecked=0, Total=756 [2022-07-19 22:13:53,645 INFO L87 Difference]: Start difference. First operand 183 states and 241 transitions. Second operand has 28 states, 28 states have (on average 3.7142857142857144) internal successors, (104), 26 states have internal predecessors, (104), 10 states have call successors, (33), 3 states have call predecessors, (33), 5 states have return successors, (33), 10 states have call predecessors, (33), 10 states have call successors, (33) [2022-07-19 22:13:54,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:13:54,579 INFO L93 Difference]: Finished difference Result 366 states and 488 transitions. [2022-07-19 22:13:54,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-19 22:13:54,579 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.7142857142857144) internal successors, (104), 26 states have internal predecessors, (104), 10 states have call successors, (33), 3 states have call predecessors, (33), 5 states have return successors, (33), 10 states have call predecessors, (33), 10 states have call successors, (33) Word has length 116 [2022-07-19 22:13:54,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:13:54,581 INFO L225 Difference]: With dead ends: 366 [2022-07-19 22:13:54,581 INFO L226 Difference]: Without dead ends: 240 [2022-07-19 22:13:54,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 240 SyntacticMatches, 10 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=223, Invalid=1183, Unknown=0, NotChecked=0, Total=1406 [2022-07-19 22:13:54,582 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 213 mSDsluCounter, 2516 mSDsCounter, 0 mSdLazyCounter, 982 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 2744 SdHoareTripleChecker+Invalid, 1538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 459 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-19 22:13:54,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 2744 Invalid, 1538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 982 Invalid, 0 Unknown, 459 Unchecked, 0.6s Time] [2022-07-19 22:13:54,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2022-07-19 22:13:54,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 187. [2022-07-19 22:13:54,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 120 states have (on average 1.175) internal successors, (141), 122 states have internal predecessors, (141), 50 states have call successors, (50), 16 states have call predecessors, (50), 16 states have return successors, (52), 48 states have call predecessors, (52), 49 states have call successors, (52) [2022-07-19 22:13:54,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 243 transitions. [2022-07-19 22:13:54,592 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 243 transitions. Word has length 116 [2022-07-19 22:13:54,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:13:54,592 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 243 transitions. [2022-07-19 22:13:54,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.7142857142857144) internal successors, (104), 26 states have internal predecessors, (104), 10 states have call successors, (33), 3 states have call predecessors, (33), 5 states have return successors, (33), 10 states have call predecessors, (33), 10 states have call successors, (33) [2022-07-19 22:13:54,593 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 243 transitions. [2022-07-19 22:13:54,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-19 22:13:54,594 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:13:54,594 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:13:54,628 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-19 22:13:54,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:13:54,812 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:13:54,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:13:54,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1492302642, now seen corresponding path program 1 times [2022-07-19 22:13:54,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:13:54,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364370459] [2022-07-19 22:13:54,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:13:54,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:13:54,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:54,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 22:13:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:54,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 22:13:54,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:54,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 22:13:54,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:54,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:13:54,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:54,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-19 22:13:54,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:54,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 22:13:54,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:54,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:13:54,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:54,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 22:13:54,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:54,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 22:13:54,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:54,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 22:13:54,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:54,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-19 22:13:54,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:54,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-19 22:13:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:54,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-19 22:13:54,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:54,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:13:54,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:54,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-19 22:13:54,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:54,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-19 22:13:54,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:55,000 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-07-19 22:13:55,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:13:55,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364370459] [2022-07-19 22:13:55,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364370459] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 22:13:55,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884739882] [2022-07-19 22:13:55,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:13:55,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:13:55,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:13:55,016 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 22:13:55,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-19 22:13:55,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:13:55,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 52 conjunts are in the unsatisfiable core [2022-07-19 22:13:55,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:13:55,164 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-19 22:13:55,276 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-07-19 22:13:55,276 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-07-19 22:13:55,282 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-07-19 22:13:55,284 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-07-19 22:13:55,331 INFO L356 Elim1Store]: treesize reduction 38, result has 22.4 percent of original size [2022-07-19 22:13:55,333 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-07-19 22:13:55,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-19 22:13:55,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:13:55,541 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: |v_#memory_$Pointer$.base_50| input size 44 context size 44 output size 44 at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:364) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:427) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:122) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:650) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:611) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:529) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:333) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:269) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:248) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:409) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:300) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:260) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:152) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-19 22:13:55,549 INFO L158 Benchmark]: Toolchain (without parser) took 12858.71ms. Allocated memory was 119.5MB in the beginning and 323.0MB in the end (delta: 203.4MB). Free memory was 74.9MB in the beginning and 210.2MB in the end (delta: -135.3MB). Peak memory consumption was 69.6MB. Max. memory is 16.1GB. [2022-07-19 22:13:55,549 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 119.5MB. Free memory was 97.9MB in the beginning and 97.8MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 22:13:55,549 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1244.84ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 74.8MB in the beginning and 102.1MB in the end (delta: -27.3MB). Peak memory consumption was 56.9MB. Max. memory is 16.1GB. [2022-07-19 22:13:55,549 INFO L158 Benchmark]: Boogie Procedure Inliner took 153.21ms. Allocated memory is still 144.7MB. Free memory was 102.1MB in the beginning and 95.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-19 22:13:55,550 INFO L158 Benchmark]: Boogie Preprocessor took 56.17ms. Allocated memory is still 144.7MB. Free memory was 95.7MB in the beginning and 92.5MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-19 22:13:55,550 INFO L158 Benchmark]: RCFGBuilder took 542.86ms. Allocated memory is still 144.7MB. Free memory was 92.5MB in the beginning and 63.2MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-07-19 22:13:55,550 INFO L158 Benchmark]: TraceAbstraction took 10857.53ms. Allocated memory was 144.7MB in the beginning and 323.0MB in the end (delta: 178.3MB). Free memory was 63.2MB in the beginning and 210.2MB in the end (delta: -147.1MB). Peak memory consumption was 34.2MB. Max. memory is 16.1GB. [2022-07-19 22:13:55,553 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 119.5MB. Free memory was 97.9MB in the beginning and 97.8MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1244.84ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 74.8MB in the beginning and 102.1MB in the end (delta: -27.3MB). Peak memory consumption was 56.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 153.21ms. Allocated memory is still 144.7MB. Free memory was 102.1MB in the beginning and 95.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.17ms. Allocated memory is still 144.7MB. Free memory was 95.7MB in the beginning and 92.5MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 542.86ms. Allocated memory is still 144.7MB. Free memory was 92.5MB in the beginning and 63.2MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 10857.53ms. Allocated memory was 144.7MB in the beginning and 323.0MB in the end (delta: 178.3MB). Free memory was 63.2MB in the beginning and 210.2MB in the end (delta: -147.1MB). Peak memory consumption was 34.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: |v_#memory_$Pointer$.base_50| input size 44 context size 44 output size 44 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: |v_#memory_$Pointer$.base_50| input size 44 context size 44 output size 44: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:364) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-07-19 22:13:55,578 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_linked_list_pop_front_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash edd3fac09d24fc037292743bb080afb788cb886b05d29648be5f73c1396cfbb6 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 22:13:57,242 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 22:13:57,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 22:13:57,261 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 22:13:57,262 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 22:13:57,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 22:13:57,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 22:13:57,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 22:13:57,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 22:13:57,271 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 22:13:57,271 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 22:13:57,272 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 22:13:57,273 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 22:13:57,273 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 22:13:57,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 22:13:57,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 22:13:57,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 22:13:57,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 22:13:57,277 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 22:13:57,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 22:13:57,280 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 22:13:57,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 22:13:57,281 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 22:13:57,282 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 22:13:57,282 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 22:13:57,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 22:13:57,285 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 22:13:57,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 22:13:57,286 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 22:13:57,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 22:13:57,287 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 22:13:57,287 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 22:13:57,287 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 22:13:57,288 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 22:13:57,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 22:13:57,289 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 22:13:57,290 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 22:13:57,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 22:13:57,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 22:13:57,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 22:13:57,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 22:13:57,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 22:13:57,293 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-19 22:13:57,308 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 22:13:57,308 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 22:13:57,308 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 22:13:57,308 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 22:13:57,309 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 22:13:57,309 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 22:13:57,309 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 22:13:57,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 22:13:57,310 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 22:13:57,310 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 22:13:57,310 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 22:13:57,310 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 22:13:57,311 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 22:13:57,311 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 22:13:57,311 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-19 22:13:57,311 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-19 22:13:57,311 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-19 22:13:57,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 22:13:57,312 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 22:13:57,312 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 22:13:57,312 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 22:13:57,312 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 22:13:57,313 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 22:13:57,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 22:13:57,313 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 22:13:57,313 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 22:13:57,313 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 22:13:57,313 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-19 22:13:57,314 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-19 22:13:57,314 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 22:13:57,314 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 22:13:57,314 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 22:13:57,314 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-19 22:13:57,315 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edd3fac09d24fc037292743bb080afb788cb886b05d29648be5f73c1396cfbb6 [2022-07-19 22:13:57,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 22:13:57,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 22:13:57,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 22:13:57,609 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 22:13:57,610 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 22:13:57,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_linked_list_pop_front_harness.i [2022-07-19 22:13:57,647 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/134a1b42a/2c5d923def104a848279fe7e3ba141e5/FLAGc8a3f89c3 [2022-07-19 22:13:58,213 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 22:13:58,214 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_pop_front_harness.i [2022-07-19 22:13:58,239 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/134a1b42a/2c5d923def104a848279fe7e3ba141e5/FLAGc8a3f89c3 [2022-07-19 22:13:58,422 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/134a1b42a/2c5d923def104a848279fe7e3ba141e5 [2022-07-19 22:13:58,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 22:13:58,426 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 22:13:58,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 22:13:58,427 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 22:13:58,430 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 22:13:58,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:13:58" (1/1) ... [2022-07-19 22:13:58,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10c569d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:13:58, skipping insertion in model container [2022-07-19 22:13:58,431 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:13:58" (1/1) ... [2022-07-19 22:13:58,437 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 22:13:58,499 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 22:13:58,682 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_pop_front_harness.i[4499,4512] [2022-07-19 22:13:58,689 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_pop_front_harness.i[4559,4572] [2022-07-19 22:13:59,283 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:59,284 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:59,285 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:59,285 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:59,287 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:59,298 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:59,299 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:59,300 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:59,300 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:59,302 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:59,303 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:59,304 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:59,304 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:13:59,482 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-19 22:13:59,482 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-19 22:13:59,483 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-19 22:13:59,483 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-19 22:13:59,484 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-19 22:13:59,485 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-19 22:13:59,485 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-19 22:13:59,485 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-19 22:13:59,486 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-19 22:13:59,490 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-19 22:13:59,568 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-19 22:13:59,589 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.ArithmeticException: BigInteger out of int range at java.base/java.math.BigInteger.intValueExact(BigInteger.java:4784) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1009) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:968) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:249) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:2978) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2836) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2138) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1135) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-19 22:13:59,594 INFO L158 Benchmark]: Toolchain (without parser) took 1167.25ms. Allocated memory is still 58.7MB. Free memory was 41.3MB in the beginning and 23.8MB in the end (delta: 17.5MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2022-07-19 22:13:59,595 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 48.2MB. Free memory was 30.8MB in the beginning and 30.7MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 22:13:59,597 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1165.77ms. Allocated memory is still 58.7MB. Free memory was 41.1MB in the beginning and 23.8MB in the end (delta: 17.3MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2022-07-19 22:13:59,597 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 48.2MB. Free memory was 30.8MB in the beginning and 30.7MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1165.77ms. Allocated memory is still 58.7MB. Free memory was 41.1MB in the beginning and 23.8MB in the end (delta: 17.3MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: ArithmeticException: BigInteger out of int range de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: ArithmeticException: BigInteger out of int range: java.base/java.math.BigInteger.intValueExact(BigInteger.java:4784) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: ArithmeticException: BigInteger out of int range