./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_linked_list_begin_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 b8488bc4b38d88c79bc520e9824284003ed2f71ce856a53cf11e7fc61dbeef4b --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 22:26:21,173 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 22:26:21,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 22:26:21,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 22:26:21,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 22:26:21,205 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 22:26:21,208 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 22:26:21,212 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 22:26:21,213 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 22:26:21,217 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 22:26:21,217 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 22:26:21,219 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 22:26:21,219 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 22:26:21,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 22:26:21,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 22:26:21,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 22:26:21,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 22:26:21,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 22:26:21,228 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 22:26:21,232 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 22:26:21,233 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 22:26:21,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 22:26:21,234 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 22:26:21,235 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 22:26:21,236 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 22:26:21,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 22:26:21,241 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 22:26:21,242 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 22:26:21,242 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 22:26:21,243 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 22:26:21,244 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 22:26:21,244 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 22:26:21,245 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 22:26:21,245 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 22:26:21,246 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 22:26:21,246 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 22:26:21,247 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 22:26:21,247 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 22:26:21,247 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 22:26:21,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 22:26:21,248 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 22:26:21,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 22:26:21,251 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-22 22:26:21,278 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 22:26:21,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 22:26:21,279 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 22:26:21,279 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 22:26:21,280 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 22:26:21,280 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 22:26:21,280 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 22:26:21,281 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 22:26:21,281 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 22:26:21,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 22:26:21,282 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 22:26:21,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 22:26:21,282 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 22:26:21,282 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 22:26:21,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 22:26:21,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 22:26:21,283 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 22:26:21,283 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 22:26:21,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 22:26:21,283 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 22:26:21,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 22:26:21,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 22:26:21,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 22:26:21,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 22:26:21,284 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 22:26:21,284 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 22:26:21,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 22:26:21,284 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 22:26:21,284 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 22:26:21,284 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 22:26:21,285 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8488bc4b38d88c79bc520e9824284003ed2f71ce856a53cf11e7fc61dbeef4b [2022-07-22 22:26:21,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 22:26:21,482 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 22:26:21,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 22:26:21,485 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 22:26:21,485 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 22:26:21,486 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness.i [2022-07-22 22:26:21,527 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a06d804ec/1dd06f345c3846c9948e5116b8132f12/FLAG72f20b478 [2022-07-22 22:26:22,037 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 22:26:22,048 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness.i [2022-07-22 22:26:22,076 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a06d804ec/1dd06f345c3846c9948e5116b8132f12/FLAG72f20b478 [2022-07-22 22:26:22,564 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a06d804ec/1dd06f345c3846c9948e5116b8132f12 [2022-07-22 22:26:22,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 22:26:22,569 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 22:26:22,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 22:26:22,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 22:26:22,576 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 22:26:22,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:26:22" (1/1) ... [2022-07-22 22:26:22,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@478034d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:26:22, skipping insertion in model container [2022-07-22 22:26:22,577 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:26:22" (1/1) ... [2022-07-22 22:26:22,585 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 22:26:22,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 22:26:22,823 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_begin_harness.i[4495,4508] [2022-07-22 22:26:22,828 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_begin_harness.i[4555,4568] [2022-07-22 22:26:23,303 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:23,304 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:23,304 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:23,305 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:23,306 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:23,314 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:23,316 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:23,318 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:23,318 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:23,320 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:23,320 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:23,321 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:23,321 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:23,486 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-22 22:26:23,487 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-22 22:26:23,488 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-22 22:26:23,488 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-22 22:26:23,489 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-22 22:26:23,489 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-22 22:26:23,490 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-22 22:26:23,490 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-22 22:26:23,491 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-22 22:26:23,491 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-22 22:26:23,596 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-22 22:26:23,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 22:26:23,640 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 22:26:23,657 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_begin_harness.i[4495,4508] [2022-07-22 22:26:23,657 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_begin_harness.i[4555,4568] [2022-07-22 22:26:23,717 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:23,717 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:23,717 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:23,720 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:23,721 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:23,728 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:23,728 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:23,728 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:23,729 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:23,729 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:23,730 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:23,730 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:23,730 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:23,758 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-22 22:26:23,759 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-22 22:26:23,759 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-22 22:26:23,760 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-22 22:26:23,764 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-22 22:26:23,765 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-22 22:26:23,765 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-22 22:26:23,765 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-22 22:26:23,766 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-22 22:26:23,766 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-22 22:26:23,790 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-22 22:26:23,815 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 22:26:23,916 INFO L208 MainTranslator]: Completed translation [2022-07-22 22:26:23,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:26:23 WrapperNode [2022-07-22 22:26:23,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 22:26:23,918 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 22:26:23,918 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 22:26:23,918 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 22:26:23,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:26:23" (1/1) ... [2022-07-22 22:26:23,969 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:26:23" (1/1) ... [2022-07-22 22:26:23,994 INFO L137 Inliner]: procedures = 679, calls = 1041, calls flagged for inlining = 52, calls inlined = 6, statements flattened = 142 [2022-07-22 22:26:23,995 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 22:26:23,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 22:26:23,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 22:26:23,996 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 22:26:24,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:26:23" (1/1) ... [2022-07-22 22:26:24,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:26:23" (1/1) ... [2022-07-22 22:26:24,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:26:23" (1/1) ... [2022-07-22 22:26:24,004 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:26:23" (1/1) ... [2022-07-22 22:26:24,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:26:23" (1/1) ... [2022-07-22 22:26:24,015 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:26:23" (1/1) ... [2022-07-22 22:26:24,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:26:23" (1/1) ... [2022-07-22 22:26:24,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 22:26:24,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 22:26:24,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 22:26:24,034 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 22:26:24,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:26:23" (1/1) ... [2022-07-22 22:26:24,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 22:26:24,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:26:24,060 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 22:26:24,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 22:26:24,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 22:26:24,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-22 22:26:24,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-22 22:26:24,099 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2022-07-22 22:26:24,099 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2022-07-22 22:26:24,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 22:26:24,099 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2022-07-22 22:26:24,100 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2022-07-22 22:26:24,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 22:26:24,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-22 22:26:24,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 22:26:24,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 22:26:24,101 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-22 22:26:24,101 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-22 22:26:24,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 22:26:24,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-22 22:26:24,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-22 22:26:24,101 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-07-22 22:26:24,101 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-07-22 22:26:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 22:26:24,324 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 22:26:24,325 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 22:26:24,495 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 22:26:24,501 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 22:26:24,501 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-22 22:26:24,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 10:26:24 BoogieIcfgContainer [2022-07-22 22:26:24,503 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 22:26:24,504 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 22:26:24,504 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 22:26:24,506 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 22:26:24,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 10:26:22" (1/3) ... [2022-07-22 22:26:24,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@711a7792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 10:26:24, skipping insertion in model container [2022-07-22 22:26:24,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:26:23" (2/3) ... [2022-07-22 22:26:24,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@711a7792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 10:26:24, skipping insertion in model container [2022-07-22 22:26:24,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 10:26:24" (3/3) ... [2022-07-22 22:26:24,508 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_linked_list_begin_harness.i [2022-07-22 22:26:24,517 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 22:26:24,517 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 22:26:24,546 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 22:26:24,550 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@5d92fd45, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7fcf82b8 [2022-07-22 22:26:24,551 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 22:26:24,553 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 49 states have (on average 1.346938775510204) internal successors, (66), 50 states have internal predecessors, (66), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-07-22 22:26:24,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-22 22:26:24,561 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:26:24,561 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 22:26:24,562 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:26:24,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:26:24,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1062572114, now seen corresponding path program 1 times [2022-07-22 22:26:24,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:26:24,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189528666] [2022-07-22 22:26:24,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:26:24,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:26:24,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:24,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:26:24,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:24,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:26:24,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:24,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 22:26:24,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:24,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 22:26:24,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:24,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-22 22:26:24,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:24,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-22 22:26:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:24,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 22:26:24,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:24,868 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-07-22 22:26:24,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:26:24,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189528666] [2022-07-22 22:26:24,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189528666] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:26:24,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:26:24,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 22:26:24,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689074157] [2022-07-22 22:26:24,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:26:24,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 22:26:24,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:26:24,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 22:26:24,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 22:26:24,909 INFO L87 Difference]: Start difference. First operand has 69 states, 49 states have (on average 1.346938775510204) internal successors, (66), 50 states have internal predecessors, (66), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-22 22:26:24,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:26:24,943 INFO L93 Difference]: Finished difference Result 130 states and 186 transitions. [2022-07-22 22:26:24,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 22:26:24,945 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2022-07-22 22:26:24,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:26:24,954 INFO L225 Difference]: With dead ends: 130 [2022-07-22 22:26:24,955 INFO L226 Difference]: Without dead ends: 64 [2022-07-22 22:26:24,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 22:26:24,961 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 22:26:24,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 22:26:24,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-07-22 22:26:24,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-07-22 22:26:24,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 45 states have (on average 1.288888888888889) internal successors, (58), 46 states have internal predecessors, (58), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-07-22 22:26:25,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 83 transitions. [2022-07-22 22:26:25,005 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 83 transitions. Word has length 68 [2022-07-22 22:26:25,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:26:25,006 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 83 transitions. [2022-07-22 22:26:25,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-22 22:26:25,007 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 83 transitions. [2022-07-22 22:26:25,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-22 22:26:25,012 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:26:25,012 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 22:26:25,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 22:26:25,015 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:26:25,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:26:25,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1946087212, now seen corresponding path program 1 times [2022-07-22 22:26:25,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:26:25,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401653081] [2022-07-22 22:26:25,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:26:25,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:26:25,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:25,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:26:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:25,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:26:25,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:25,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 22:26:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:25,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 22:26:25,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:25,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-22 22:26:25,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:25,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-22 22:26:25,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:25,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 22:26:25,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:25,297 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-22 22:26:25,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:26:25,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401653081] [2022-07-22 22:26:25,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401653081] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:26:25,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694385205] [2022-07-22 22:26:25,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:26:25,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:26:25,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:26:25,326 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:26:25,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 22:26:25,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:25,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 62 conjunts are in the unsatisfiable core [2022-07-22 22:26:25,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:26:25,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:26:25,585 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 18 treesize of output 19 [2022-07-22 22:26:25,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:26:25,623 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 18 treesize of output 19 [2022-07-22 22:26:25,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:26:25,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:26:25,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:26:25,710 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-07-22 22:26:25,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:26:25,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:26:25,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:26:25,718 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-07-22 22:26:25,968 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-22 22:26:25,969 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:26:25,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694385205] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:26:25,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:26:25,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2022-07-22 22:26:25,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424452751] [2022-07-22 22:26:25,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:26:25,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 22:26:25,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:26:25,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 22:26:25,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-07-22 22:26:25,971 INFO L87 Difference]: Start difference. First operand 64 states and 83 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-22 22:26:26,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:26:26,035 INFO L93 Difference]: Finished difference Result 132 states and 175 transitions. [2022-07-22 22:26:26,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 22:26:26,036 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) Word has length 68 [2022-07-22 22:26:26,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:26:26,039 INFO L225 Difference]: With dead ends: 132 [2022-07-22 22:26:26,039 INFO L226 Difference]: Without dead ends: 80 [2022-07-22 22:26:26,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-07-22 22:26:26,044 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 16 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 54 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 22:26:26,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 362 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 54 Unchecked, 0.0s Time] [2022-07-22 22:26:26,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-07-22 22:26:26,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2022-07-22 22:26:26,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 59 states have (on average 1.3220338983050848) internal successors, (78), 61 states have internal predecessors, (78), 14 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (14), 12 states have call predecessors, (14), 13 states have call successors, (14) [2022-07-22 22:26:26,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 106 transitions. [2022-07-22 22:26:26,054 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 106 transitions. Word has length 68 [2022-07-22 22:26:26,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:26:26,054 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 106 transitions. [2022-07-22 22:26:26,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-22 22:26:26,054 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 106 transitions. [2022-07-22 22:26:26,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-22 22:26:26,055 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:26:26,055 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 22:26:26,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-22 22:26:26,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:26:26,256 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:26:26,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:26:26,257 INFO L85 PathProgramCache]: Analyzing trace with hash -103300630, now seen corresponding path program 1 times [2022-07-22 22:26:26,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:26:26,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419222047] [2022-07-22 22:26:26,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:26:26,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:26:26,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:26,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:26:26,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:26,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:26:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:26,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 22:26:26,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:26,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 22:26:26,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:26,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-22 22:26:26,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:26,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-22 22:26:26,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:26,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 22:26:26,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:26,393 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-22 22:26:26,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:26:26,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419222047] [2022-07-22 22:26:26,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419222047] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:26:26,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448003122] [2022-07-22 22:26:26,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:26:26,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:26:26,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:26:26,395 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:26:26,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 22:26:26,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:26,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 26 conjunts are in the unsatisfiable core [2022-07-22 22:26:26,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:26:26,600 INFO L356 Elim1Store]: treesize reduction 30, result has 38.8 percent of original size [2022-07-22 22:26:26,600 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 78 [2022-07-22 22:26:26,606 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 10 treesize of output 9 [2022-07-22 22:26:26,612 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 16 treesize of output 15 [2022-07-22 22:26:26,654 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 26 [2022-07-22 22:26:26,657 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-07-22 22:26:29,444 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-22 22:26:29,445 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:26:29,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448003122] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:26:29,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:26:29,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2022-07-22 22:26:29,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113789944] [2022-07-22 22:26:29,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:26:29,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-22 22:26:29,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:26:29,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-22 22:26:29,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=175, Unknown=3, NotChecked=0, Total=210 [2022-07-22 22:26:29,447 INFO L87 Difference]: Start difference. First operand 80 states and 106 transitions. Second operand has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 10 states have internal predecessors, (40), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-22 22:26:29,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:26:29,589 INFO L93 Difference]: Finished difference Result 185 states and 248 transitions. [2022-07-22 22:26:29,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-22 22:26:29,590 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 10 states have internal predecessors, (40), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) Word has length 68 [2022-07-22 22:26:29,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:26:29,592 INFO L225 Difference]: With dead ends: 185 [2022-07-22 22:26:29,592 INFO L226 Difference]: Without dead ends: 133 [2022-07-22 22:26:29,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=51, Invalid=252, Unknown=3, NotChecked=0, Total=306 [2022-07-22 22:26:29,593 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 105 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 130 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 22:26:29,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 637 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 37 Invalid, 0 Unknown, 130 Unchecked, 0.1s Time] [2022-07-22 22:26:29,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-07-22 22:26:29,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 130. [2022-07-22 22:26:29,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 95 states have (on average 1.3368421052631578) internal successors, (127), 97 states have internal predecessors, (127), 24 states have call successors, (24), 10 states have call predecessors, (24), 10 states have return successors, (26), 22 states have call predecessors, (26), 22 states have call successors, (26) [2022-07-22 22:26:29,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 177 transitions. [2022-07-22 22:26:29,629 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 177 transitions. Word has length 68 [2022-07-22 22:26:29,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:26:29,629 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 177 transitions. [2022-07-22 22:26:29,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 10 states have internal predecessors, (40), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-22 22:26:29,630 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 177 transitions. [2022-07-22 22:26:29,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-22 22:26:29,631 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:26:29,631 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-22 22:26:29,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-22 22:26:29,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-07-22 22:26:29,865 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:26:29,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:26:29,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1824972072, now seen corresponding path program 1 times [2022-07-22 22:26:29,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:26:29,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839814954] [2022-07-22 22:26:29,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:26:29,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:26:29,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:29,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:26:29,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:29,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:26:29,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:29,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 22:26:29,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:29,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 22:26:29,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:29,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-22 22:26:29,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:29,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-22 22:26:30,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:30,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 22:26:30,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:30,016 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-22 22:26:30,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:26:30,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839814954] [2022-07-22 22:26:30,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839814954] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:26:30,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668633833] [2022-07-22 22:26:30,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:26:30,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:26:30,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:26:30,019 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:26:30,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 22:26:30,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:30,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 46 conjunts are in the unsatisfiable core [2022-07-22 22:26:30,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:26:30,203 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-22 22:26:30,204 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 [2022-07-22 22:26:30,214 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-22 22:26:30,215 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 [2022-07-22 22:26:30,718 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 40 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 22:26:30,718 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 22:26:31,112 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-22 22:26:31,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668633833] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 22:26:31,112 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 22:26:31,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 15, 12] total 28 [2022-07-22 22:26:31,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545009385] [2022-07-22 22:26:31,113 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 22:26:31,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-07-22 22:26:31,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:26:31,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-07-22 22:26:31,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=668, Unknown=0, NotChecked=0, Total=756 [2022-07-22 22:26:31,114 INFO L87 Difference]: Start difference. First operand 130 states and 177 transitions. Second operand has 28 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 9 states have call successors, (17), 3 states have call predecessors, (17), 8 states have return successors, (17), 6 states have call predecessors, (17), 9 states have call successors, (17) [2022-07-22 22:26:32,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:26:32,557 INFO L93 Difference]: Finished difference Result 394 states and 640 transitions. [2022-07-22 22:26:32,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-07-22 22:26:32,558 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 9 states have call successors, (17), 3 states have call predecessors, (17), 8 states have return successors, (17), 6 states have call predecessors, (17), 9 states have call successors, (17) Word has length 68 [2022-07-22 22:26:32,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:26:32,564 INFO L225 Difference]: With dead ends: 394 [2022-07-22 22:26:32,564 INFO L226 Difference]: Without dead ends: 285 [2022-07-22 22:26:32,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 130 SyntacticMatches, 5 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 641 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=332, Invalid=2638, Unknown=0, NotChecked=0, Total=2970 [2022-07-22 22:26:32,570 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 222 mSDsluCounter, 1335 mSDsCounter, 0 mSdLazyCounter, 998 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 1453 SdHoareTripleChecker+Invalid, 1390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 274 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 22:26:32,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 1453 Invalid, 1390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 998 Invalid, 0 Unknown, 274 Unchecked, 0.5s Time] [2022-07-22 22:26:32,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-07-22 22:26:32,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 245. [2022-07-22 22:26:32,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 178 states have (on average 1.3595505617977528) internal successors, (242), 184 states have internal predecessors, (242), 48 states have call successors, (48), 14 states have call predecessors, (48), 18 states have return successors, (109), 46 states have call predecessors, (109), 46 states have call successors, (109) [2022-07-22 22:26:32,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 399 transitions. [2022-07-22 22:26:32,635 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 399 transitions. Word has length 68 [2022-07-22 22:26:32,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:26:32,636 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 399 transitions. [2022-07-22 22:26:32,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 25 states have (on average 3.76) internal successors, (94), 25 states have internal predecessors, (94), 9 states have call successors, (17), 3 states have call predecessors, (17), 8 states have return successors, (17), 6 states have call predecessors, (17), 9 states have call successors, (17) [2022-07-22 22:26:32,636 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 399 transitions. [2022-07-22 22:26:32,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-22 22:26:32,642 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:26:32,642 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 22:26:32,663 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-07-22 22:26:32,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:26:32,867 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:26:32,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:26:32,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1195332088, now seen corresponding path program 1 times [2022-07-22 22:26:32,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:26:32,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114187510] [2022-07-22 22:26:32,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:26:32,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:26:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:32,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:26:32,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:32,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:26:32,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:32,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 22:26:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:32,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-22 22:26:32,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:32,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-22 22:26:33,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:33,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-22 22:26:33,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:33,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-22 22:26:33,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:33,026 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-22 22:26:33,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:26:33,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114187510] [2022-07-22 22:26:33,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114187510] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:26:33,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744595488] [2022-07-22 22:26:33,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:26:33,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:26:33,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:26:33,044 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:26:33,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-22 22:26:33,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:33,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 22:26:33,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:26:33,243 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-22 22:26:33,243 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:26:33,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744595488] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:26:33,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:26:33,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2022-07-22 22:26:33,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861456720] [2022-07-22 22:26:33,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:26:33,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 22:26:33,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:26:33,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 22:26:33,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-07-22 22:26:33,245 INFO L87 Difference]: Start difference. First operand 245 states and 399 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-22 22:26:33,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:26:33,417 INFO L93 Difference]: Finished difference Result 479 states and 818 transitions. [2022-07-22 22:26:33,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 22:26:33,417 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 70 [2022-07-22 22:26:33,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:26:33,419 INFO L225 Difference]: With dead ends: 479 [2022-07-22 22:26:33,419 INFO L226 Difference]: Without dead ends: 269 [2022-07-22 22:26:33,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-07-22 22:26:33,421 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 107 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 22:26:33,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 243 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 22:26:33,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2022-07-22 22:26:33,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 257. [2022-07-22 22:26:33,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 186 states have (on average 1.3440860215053763) internal successors, (250), 196 states have internal predecessors, (250), 48 states have call successors, (48), 14 states have call predecessors, (48), 22 states have return successors, (135), 46 states have call predecessors, (135), 46 states have call successors, (135) [2022-07-22 22:26:33,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 433 transitions. [2022-07-22 22:26:33,464 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 433 transitions. Word has length 70 [2022-07-22 22:26:33,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:26:33,464 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 433 transitions. [2022-07-22 22:26:33,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-22 22:26:33,464 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 433 transitions. [2022-07-22 22:26:33,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-22 22:26:33,466 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:26:33,466 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 22:26:33,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-22 22:26:33,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:26:33,679 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:26:33,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:26:33,680 INFO L85 PathProgramCache]: Analyzing trace with hash -316025515, now seen corresponding path program 1 times [2022-07-22 22:26:33,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:26:33,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901584369] [2022-07-22 22:26:33,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:26:33,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:26:33,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:33,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:26:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:33,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:26:33,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:33,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 22:26:33,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:33,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 22:26:33,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:33,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 22:26:33,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:33,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 22:26:33,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:33,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 22:26:33,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:33,754 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-22 22:26:33,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:26:33,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901584369] [2022-07-22 22:26:33,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901584369] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:26:33,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104293226] [2022-07-22 22:26:33,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:26:33,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:26:33,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:26:33,756 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:26:33,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-22 22:26:33,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:33,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-22 22:26:33,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:26:33,954 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-22 22:26:33,954 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:26:33,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104293226] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:26:33,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:26:33,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4] total 10 [2022-07-22 22:26:33,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676051414] [2022-07-22 22:26:33,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:26:33,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 22:26:33,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:26:33,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 22:26:33,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-22 22:26:33,956 INFO L87 Difference]: Start difference. First operand 257 states and 433 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-22 22:26:34,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:26:34,124 INFO L93 Difference]: Finished difference Result 563 states and 1012 transitions. [2022-07-22 22:26:34,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 22:26:34,125 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 72 [2022-07-22 22:26:34,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:26:34,127 INFO L225 Difference]: With dead ends: 563 [2022-07-22 22:26:34,127 INFO L226 Difference]: Without dead ends: 341 [2022-07-22 22:26:34,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2022-07-22 22:26:34,129 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 144 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 22:26:34,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 284 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 22:26:34,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2022-07-22 22:26:34,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 265. [2022-07-22 22:26:34,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 194 states have (on average 1.3505154639175259) internal successors, (262), 204 states have internal predecessors, (262), 48 states have call successors, (48), 14 states have call predecessors, (48), 22 states have return successors, (135), 46 states have call predecessors, (135), 46 states have call successors, (135) [2022-07-22 22:26:34,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 445 transitions. [2022-07-22 22:26:34,149 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 445 transitions. Word has length 72 [2022-07-22 22:26:34,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:26:34,149 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 445 transitions. [2022-07-22 22:26:34,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-22 22:26:34,149 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 445 transitions. [2022-07-22 22:26:34,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-22 22:26:34,151 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:26:34,151 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 22:26:34,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-22 22:26:34,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:26:34,364 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:26:34,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:26:34,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1928092350, now seen corresponding path program 1 times [2022-07-22 22:26:34,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:26:34,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854225544] [2022-07-22 22:26:34,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:26:34,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:26:34,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:34,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:26:34,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:34,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:26:34,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:34,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 22:26:34,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:34,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 22:26:34,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:34,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-22 22:26:34,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:34,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-22 22:26:34,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:34,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-22 22:26:34,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:34,464 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-22 22:26:34,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:26:34,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854225544] [2022-07-22 22:26:34,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854225544] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:26:34,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362939616] [2022-07-22 22:26:34,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:26:34,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:26:34,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:26:34,480 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:26:34,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-22 22:26:34,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:34,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 22:26:34,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:26:34,602 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-22 22:26:34,602 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:26:34,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362939616] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:26:34,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:26:34,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-22 22:26:34,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333222240] [2022-07-22 22:26:34,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:26:34,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 22:26:34,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:26:34,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 22:26:34,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-22 22:26:34,604 INFO L87 Difference]: Start difference. First operand 265 states and 445 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-22 22:26:34,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:26:34,627 INFO L93 Difference]: Finished difference Result 547 states and 1021 transitions. [2022-07-22 22:26:34,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 22:26:34,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 73 [2022-07-22 22:26:34,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:26:34,630 INFO L225 Difference]: With dead ends: 547 [2022-07-22 22:26:34,630 INFO L226 Difference]: Without dead ends: 317 [2022-07-22 22:26:34,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-22 22:26:34,633 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 6 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 22:26:34,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 162 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 22:26:34,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-07-22 22:26:34,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 273. [2022-07-22 22:26:34,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 202 states have (on average 1.3465346534653466) internal successors, (272), 212 states have internal predecessors, (272), 48 states have call successors, (48), 14 states have call predecessors, (48), 22 states have return successors, (135), 46 states have call predecessors, (135), 46 states have call successors, (135) [2022-07-22 22:26:34,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 455 transitions. [2022-07-22 22:26:34,676 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 455 transitions. Word has length 73 [2022-07-22 22:26:34,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:26:34,677 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 455 transitions. [2022-07-22 22:26:34,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-22 22:26:34,677 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 455 transitions. [2022-07-22 22:26:34,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-22 22:26:34,679 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:26:34,679 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-22 22:26:34,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-22 22:26:34,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:26:34,888 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:26:34,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:26:34,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1085947066, now seen corresponding path program 1 times [2022-07-22 22:26:34,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:26:34,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004762032] [2022-07-22 22:26:34,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:26:34,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:26:34,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:34,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:26:34,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:34,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:26:34,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:34,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 22:26:34,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:35,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:26:35,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:35,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-22 22:26:35,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:35,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-22 22:26:35,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:35,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-22 22:26:35,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:35,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-22 22:26:35,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:35,053 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-22 22:26:35,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:26:35,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004762032] [2022-07-22 22:26:35,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004762032] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:26:35,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500552788] [2022-07-22 22:26:35,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:26:35,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:26:35,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:26:35,055 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:26:35,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-22 22:26:35,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:35,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 85 conjunts are in the unsatisfiable core [2022-07-22 22:26:35,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:26:35,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:26:35,243 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 18 treesize of output 19 [2022-07-22 22:26:35,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:26:35,251 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 18 treesize of output 19 [2022-07-22 22:26:35,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:26:35,285 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2022-07-22 22:26:35,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:26:35,288 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-07-22 22:26:35,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:26:35,296 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2022-07-22 22:26:35,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:26:35,299 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-07-22 22:26:35,373 INFO L356 Elim1Store]: treesize reduction 38, result has 22.4 percent of original size [2022-07-22 22:26:35,374 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-07-22 22:26:35,392 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-22 22:26:35,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:26:35,592 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_31| input size 60 context size 60 output size 60 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:124) 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:187) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:298) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:284) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$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) [2022-07-22 22:26:35,595 INFO L158 Benchmark]: Toolchain (without parser) took 13026.00ms. Allocated memory was 121.6MB in the beginning and 262.1MB in the end (delta: 140.5MB). Free memory was 79.9MB in the beginning and 113.3MB in the end (delta: -33.5MB). Peak memory consumption was 106.2MB. Max. memory is 16.1GB. [2022-07-22 22:26:35,595 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 77.6MB. Free memory is still 34.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 22:26:35,595 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1344.56ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 79.9MB in the beginning and 79.8MB in the end (delta: 91.3kB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2022-07-22 22:26:35,596 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.18ms. Allocated memory is still 146.8MB. Free memory was 79.8MB in the beginning and 74.2MB in the end (delta: 5.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 22:26:35,596 INFO L158 Benchmark]: Boogie Preprocessor took 24.08ms. Allocated memory is still 146.8MB. Free memory was 74.2MB in the beginning and 71.4MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 22:26:35,596 INFO L158 Benchmark]: RCFGBuilder took 483.00ms. Allocated memory is still 146.8MB. Free memory was 71.4MB in the beginning and 89.0MB in the end (delta: -17.6MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2022-07-22 22:26:35,596 INFO L158 Benchmark]: TraceAbstraction took 11090.96ms. Allocated memory was 146.8MB in the beginning and 262.1MB in the end (delta: 115.3MB). Free memory was 88.5MB in the beginning and 113.3MB in the end (delta: -24.8MB). Peak memory consumption was 91.5MB. Max. memory is 16.1GB. [2022-07-22 22:26:35,597 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 77.6MB. Free memory is still 34.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1344.56ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 79.9MB in the beginning and 79.8MB in the end (delta: 91.3kB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.18ms. Allocated memory is still 146.8MB. Free memory was 79.8MB in the beginning and 74.2MB in the end (delta: 5.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.08ms. Allocated memory is still 146.8MB. Free memory was 74.2MB in the beginning and 71.4MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 483.00ms. Allocated memory is still 146.8MB. Free memory was 71.4MB in the beginning and 89.0MB in the end (delta: -17.6MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. * TraceAbstraction took 11090.96ms. Allocated memory was 146.8MB in the beginning and 262.1MB in the end (delta: 115.3MB). Free memory was 88.5MB in the beginning and 113.3MB in the end (delta: -24.8MB). Peak memory consumption was 91.5MB. 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_31| input size 60 context size 60 output size 60 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: |v_#memory_$Pointer$.base_31| input size 60 context size 60 output size 60: 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. [2022-07-22 22:26:35,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_begin_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 b8488bc4b38d88c79bc520e9824284003ed2f71ce856a53cf11e7fc61dbeef4b --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 22:26:37,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 22:26:37,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 22:26:37,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 22:26:37,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 22:26:37,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 22:26:37,392 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 22:26:37,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 22:26:37,395 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 22:26:37,399 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 22:26:37,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 22:26:37,401 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 22:26:37,401 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 22:26:37,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 22:26:37,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 22:26:37,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 22:26:37,408 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 22:26:37,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 22:26:37,410 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 22:26:37,414 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 22:26:37,415 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 22:26:37,415 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 22:26:37,417 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 22:26:37,418 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 22:26:37,419 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 22:26:37,424 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 22:26:37,424 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 22:26:37,424 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 22:26:37,425 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 22:26:37,425 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 22:26:37,426 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 22:26:37,426 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 22:26:37,427 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 22:26:37,428 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 22:26:37,429 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 22:26:37,429 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 22:26:37,429 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 22:26:37,430 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 22:26:37,430 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 22:26:37,430 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 22:26:37,431 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 22:26:37,431 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 22:26:37,435 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-22 22:26:37,459 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 22:26:37,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 22:26:37,459 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 22:26:37,460 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 22:26:37,460 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 22:26:37,460 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 22:26:37,461 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 22:26:37,461 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 22:26:37,461 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 22:26:37,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 22:26:37,462 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 22:26:37,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 22:26:37,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 22:26:37,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 22:26:37,470 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-22 22:26:37,470 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-22 22:26:37,470 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-22 22:26:37,470 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 22:26:37,471 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 22:26:37,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 22:26:37,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 22:26:37,471 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 22:26:37,471 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 22:26:37,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 22:26:37,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 22:26:37,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 22:26:37,472 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 22:26:37,472 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-22 22:26:37,472 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-22 22:26:37,472 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 22:26:37,473 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 22:26:37,473 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 22:26:37,473 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-22 22:26:37,473 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8488bc4b38d88c79bc520e9824284003ed2f71ce856a53cf11e7fc61dbeef4b [2022-07-22 22:26:37,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 22:26:37,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 22:26:37,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 22:26:37,763 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 22:26:37,763 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 22:26:37,764 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness.i [2022-07-22 22:26:37,811 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ed3eadbd/36f3dc3d9be243259b8336a4a411fdf0/FLAG9388bf8f8 [2022-07-22 22:26:38,301 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 22:26:38,302 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness.i [2022-07-22 22:26:38,320 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ed3eadbd/36f3dc3d9be243259b8336a4a411fdf0/FLAG9388bf8f8 [2022-07-22 22:26:38,789 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ed3eadbd/36f3dc3d9be243259b8336a4a411fdf0 [2022-07-22 22:26:38,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 22:26:38,791 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 22:26:38,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 22:26:38,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 22:26:38,800 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 22:26:38,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:26:38" (1/1) ... [2022-07-22 22:26:38,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6707b791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:26:38, skipping insertion in model container [2022-07-22 22:26:38,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:26:38" (1/1) ... [2022-07-22 22:26:38,805 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 22:26:38,875 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 22:26:39,078 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_begin_harness.i[4495,4508] [2022-07-22 22:26:39,083 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_begin_harness.i[4555,4568] [2022-07-22 22:26:39,520 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:39,520 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:39,520 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:39,521 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:39,521 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:39,529 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:39,530 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:39,531 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:39,531 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:39,532 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:39,533 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:39,533 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:39,533 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:39,706 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-22 22:26:39,708 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-22 22:26:39,709 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-22 22:26:39,710 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-22 22:26:39,714 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-22 22:26:39,715 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-22 22:26:39,715 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-22 22:26:39,716 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-22 22:26:39,716 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-22 22:26:39,717 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-22 22:26:39,806 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-22 22:26:39,814 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) [2022-07-22 22:26:39,826 INFO L158 Benchmark]: Toolchain (without parser) took 1034.55ms. Allocated memory was 56.6MB in the beginning and 73.4MB in the end (delta: 16.8MB). Free memory was 28.3MB in the beginning and 41.0MB in the end (delta: -12.7MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2022-07-22 22:26:39,827 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 56.6MB. Free memory was 38.4MB in the beginning and 38.4MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 22:26:39,827 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1033.34ms. Allocated memory was 56.6MB in the beginning and 73.4MB in the end (delta: 16.8MB). Free memory was 28.2MB in the beginning and 41.0MB in the end (delta: -12.9MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2022-07-22 22:26:39,829 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 56.6MB. Free memory was 38.4MB in the beginning and 38.4MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1033.34ms. Allocated memory was 56.6MB in the beginning and 73.4MB in the end (delta: 16.8MB). Free memory was 28.2MB in the beginning and 41.0MB in the end (delta: -12.9MB). Peak memory consumption was 13.8MB. 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