./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_linked_list_back_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_back_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 f57bc64edf303a057c8eafb48480d4e5b764bd411481261d53eb2a101eb82ae8 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 22:26:20,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 22:26:20,150 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 22:26:20,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 22:26:20,203 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 22:26:20,205 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 22:26:20,207 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 22:26:20,209 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 22:26:20,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 22:26:20,215 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 22:26:20,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 22:26:20,217 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 22:26:20,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 22:26:20,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 22:26:20,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 22:26:20,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 22:26:20,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 22:26:20,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 22:26:20,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 22:26:20,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 22:26:20,233 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 22:26:20,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 22:26:20,234 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 22:26:20,235 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 22:26:20,237 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 22:26:20,243 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 22:26:20,243 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 22:26:20,243 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 22:26:20,244 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 22:26:20,245 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 22:26:20,246 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 22:26:20,246 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 22:26:20,247 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 22:26:20,248 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 22:26:20,248 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 22:26:20,249 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 22:26:20,249 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 22:26:20,250 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 22:26:20,250 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 22:26:20,250 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 22:26:20,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 22:26:20,252 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 22:26:20,254 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-22 22:26:20,282 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 22:26:20,283 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 22:26:20,283 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 22:26:20,283 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 22:26:20,284 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 22:26:20,284 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 22:26:20,285 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 22:26:20,285 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 22:26:20,285 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 22:26:20,286 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 22:26:20,286 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 22:26:20,286 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 22:26:20,286 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 22:26:20,287 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 22:26:20,287 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 22:26:20,287 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 22:26:20,287 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 22:26:20,287 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 22:26:20,287 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 22:26:20,289 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 22:26:20,289 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 22:26:20,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 22:26:20,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 22:26:20,289 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 22:26:20,289 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 22:26:20,290 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 22:26:20,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 22:26:20,290 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 22:26:20,290 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 22:26:20,290 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 22:26:20,291 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f57bc64edf303a057c8eafb48480d4e5b764bd411481261d53eb2a101eb82ae8 [2022-07-22 22:26:20,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 22:26:20,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 22:26:20,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 22:26:20,574 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 22:26:20,575 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 22:26:20,576 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_linked_list_back_harness.i [2022-07-22 22:26:20,631 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90b0c0e0d/88613e8b3caa47f48158c899c99f3f98/FLAGe3e4b22fe [2022-07-22 22:26:21,309 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 22:26:21,310 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_back_harness.i [2022-07-22 22:26:21,342 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90b0c0e0d/88613e8b3caa47f48158c899c99f3f98/FLAGe3e4b22fe [2022-07-22 22:26:21,494 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90b0c0e0d/88613e8b3caa47f48158c899c99f3f98 [2022-07-22 22:26:21,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 22:26:21,498 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 22:26:21,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 22:26:21,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 22:26:21,503 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 22:26:21,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:26:21" (1/1) ... [2022-07-22 22:26:21,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29d0d6c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:26:21, skipping insertion in model container [2022-07-22 22:26:21,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:26:21" (1/1) ... [2022-07-22 22:26:21,512 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 22:26:21,596 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 22:26:21,836 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_back_harness.i[4494,4507] [2022-07-22 22:26:21,843 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_back_harness.i[4554,4567] [2022-07-22 22:26:22,395 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:22,402 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:22,402 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:22,404 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:22,405 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:22,415 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:22,415 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:22,417 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:22,417 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:22,420 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:22,421 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:22,422 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:22,422 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:22,650 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-22 22:26:22,651 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-22 22:26:22,652 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-22 22:26:22,652 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-22 22:26:22,653 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-22 22:26:22,654 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-22 22:26:22,654 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-22 22:26:22,655 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-22 22:26:22,655 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-22 22:26:22,656 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-22 22:26:22,786 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-22 22:26:22,829 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 22:26:22,845 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 22:26:22,869 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_back_harness.i[4494,4507] [2022-07-22 22:26:22,876 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_back_harness.i[4554,4567] [2022-07-22 22:26:22,905 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:22,905 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:22,906 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:22,906 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:22,907 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:22,912 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:22,913 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:22,913 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:22,914 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:22,915 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:22,915 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:22,922 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:22,922 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:26:22,952 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-22 22:26:22,953 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-22 22:26:22,953 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-22 22:26:22,954 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-22 22:26:22,960 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-22 22:26:22,961 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-22 22:26:22,962 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-22 22:26:22,962 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-22 22:26:22,962 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-22 22:26:22,963 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-22 22:26:23,030 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-22 22:26:23,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 22:26:23,202 INFO L208 MainTranslator]: Completed translation [2022-07-22 22:26:23,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:26:23 WrapperNode [2022-07-22 22:26:23,203 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 22:26:23,204 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 22:26:23,204 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 22:26:23,204 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 22:26:23,211 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 22:26:23,275 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 22:26:23,331 INFO L137 Inliner]: procedures = 679, calls = 1045, calls flagged for inlining = 50, calls inlined = 5, statements flattened = 134 [2022-07-22 22:26:23,332 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 22:26:23,333 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 22:26:23,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 22:26:23,333 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 22:26:23,340 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 22:26:23,340 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 22:26:23,353 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 22:26:23,354 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 22:26:23,385 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 22:26:23,389 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 22:26:23,392 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 22:26:23,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 22:26:23,405 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 22:26:23,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 22:26:23,410 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 22:26:23,411 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 22:26:23,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 22:26:23,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:26:23,445 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 22:26:23,465 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 22:26:23,486 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_back [2022-07-22 22:26:23,487 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_back [2022-07-22 22:26:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 22:26:23,487 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-22 22:26:23,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-22 22:26:23,488 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2022-07-22 22:26:23,488 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2022-07-22 22:26:23,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 22:26:23,489 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2022-07-22 22:26:23,490 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2022-07-22 22:26:23,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 22:26:23,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-22 22:26:23,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 22:26:23,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 22:26:23,490 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_empty [2022-07-22 22:26:23,491 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_empty [2022-07-22 22:26:23,491 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-22 22:26:23,491 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-22 22:26:23,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 22:26:23,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-22 22:26:23,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-22 22:26:23,491 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-07-22 22:26:23,492 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-07-22 22:26:23,492 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2022-07-22 22:26:23,492 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2022-07-22 22:26:23,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 22:26:23,754 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 22:26:23,756 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 22:26:24,005 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 22:26:24,011 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 22:26:24,011 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-22 22:26:24,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 10:26:24 BoogieIcfgContainer [2022-07-22 22:26:24,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 22:26:24,015 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 22:26:24,015 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 22:26:24,018 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 22:26:24,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 10:26:21" (1/3) ... [2022-07-22 22:26:24,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@226e0b48 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 22:26:24,019 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 22:26:24,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@226e0b48 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 22:26:24,019 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 22:26:24,020 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_linked_list_back_harness.i [2022-07-22 22:26:24,032 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 22:26:24,034 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 22:26:24,084 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 22:26:24,090 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@635374cc, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7f461859 [2022-07-22 22:26:24,091 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 22:26:24,094 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 64 states have (on average 1.296875) internal successors, (83), 65 states have internal predecessors, (83), 24 states have call successors, (24), 8 states have call predecessors, (24), 8 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-07-22 22:26:24,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-22 22:26:24,104 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:26:24,105 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:26:24,105 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:26:24,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:26:24,110 INFO L85 PathProgramCache]: Analyzing trace with hash 464723229, now seen corresponding path program 1 times [2022-07-22 22:26:24,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:26:24,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739550778] [2022-07-22 22:26:24,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:26:24,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:26:24,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:24,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:26:24,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:24,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:26:24,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:24,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 22:26:24,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:24,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:26:24,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:24,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 22:26:24,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:24,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-22 22:26:24,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:24,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-22 22:26:24,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:24,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 22:26:24,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:24,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:26:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:24,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-22 22:26:24,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:24,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-22 22:26:24,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:24,620 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-07-22 22:26:24,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:26:24,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739550778] [2022-07-22 22:26:24,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739550778] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:26:24,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:26:24,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 22:26:24,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044602298] [2022-07-22 22:26:24,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:26:24,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 22:26:24,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:26:24,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 22:26:24,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 22:26:24,651 INFO L87 Difference]: Start difference. First operand has 98 states, 64 states have (on average 1.296875) internal successors, (83), 65 states have internal predecessors, (83), 24 states have call successors, (24), 8 states have call predecessors, (24), 8 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 22:26:24,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:26:24,705 INFO L93 Difference]: Finished difference Result 188 states and 271 transitions. [2022-07-22 22:26:24,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 22:26:24,708 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 84 [2022-07-22 22:26:24,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:26:24,716 INFO L225 Difference]: With dead ends: 188 [2022-07-22 22:26:24,717 INFO L226 Difference]: Without dead ends: 93 [2022-07-22 22:26:24,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 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 22:26:24,730 INFO L413 NwaCegarLoop]: 127 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, 127 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 22:26:24,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 22:26:24,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-07-22 22:26:24,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2022-07-22 22:26:24,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 60 states have (on average 1.25) internal successors, (75), 61 states have internal predecessors, (75), 24 states have call successors, (24), 8 states have call predecessors, (24), 8 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2022-07-22 22:26:24,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 122 transitions. [2022-07-22 22:26:24,788 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 122 transitions. Word has length 84 [2022-07-22 22:26:24,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:26:24,788 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 122 transitions. [2022-07-22 22:26:24,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 22:26:24,789 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 122 transitions. [2022-07-22 22:26:24,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-22 22:26:24,793 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:26:24,794 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:26:24,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 22:26:24,797 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:26:24,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:26:24,799 INFO L85 PathProgramCache]: Analyzing trace with hash 463621205, now seen corresponding path program 1 times [2022-07-22 22:26:24,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:26:24,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496946301] [2022-07-22 22:26:24,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:26:24,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:26:24,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:24,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:26:24,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:24,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:26:24,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:25,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 22:26:25,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:25,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:26:25,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:25,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 22:26:25,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:25,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-22 22:26:25,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:25,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-22 22:26:25,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:25,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 22:26:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:25,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:26:25,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:25,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-22 22:26:25,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:25,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-22 22:26:25,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:25,217 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-07-22 22:26:25,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:26:25,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496946301] [2022-07-22 22:26:25,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496946301] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:26:25,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137397924] [2022-07-22 22:26:25,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:26:25,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:26:25,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:26:25,224 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 22:26:25,225 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 22:26:25,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:25,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 62 conjunts are in the unsatisfiable core [2022-07-22 22:26:25,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:26:25,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:26:25,543 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 22:26:25,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:26:25,555 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 22:26:25,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:26:25,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:26:25,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:26:25,660 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 22:26:25,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:26:25,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:26:25,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:26:25,670 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 22:26:26,551 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-07-22 22:26:26,552 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:26:26,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137397924] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:26:26,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:26:26,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2022-07-22 22:26:26,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284629332] [2022-07-22 22:26:26,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:26:26,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-22 22:26:26,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:26:26,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-22 22:26:26,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-07-22 22:26:26,555 INFO L87 Difference]: Start difference. First operand 93 states and 122 transitions. Second operand has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 10 states have internal predecessors, (38), 5 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2022-07-22 22:26:26,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:26:26,699 INFO L93 Difference]: Finished difference Result 201 states and 273 transitions. [2022-07-22 22:26:26,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-22 22:26:26,700 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 10 states have internal predecessors, (38), 5 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 84 [2022-07-22 22:26:26,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:26:26,706 INFO L225 Difference]: With dead ends: 201 [2022-07-22 22:26:26,707 INFO L226 Difference]: Without dead ends: 142 [2022-07-22 22:26:26,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 85 SyntacticMatches, 12 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-07-22 22:26:26,712 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 35 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 76 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 22:26:26,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 539 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 62 Invalid, 0 Unknown, 76 Unchecked, 0.1s Time] [2022-07-22 22:26:26,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-07-22 22:26:26,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 131. [2022-07-22 22:26:26,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 85 states have (on average 1.2588235294117647) internal successors, (107), 88 states have internal predecessors, (107), 33 states have call successors, (33), 12 states have call predecessors, (33), 12 states have return successors, (35), 30 states have call predecessors, (35), 32 states have call successors, (35) [2022-07-22 22:26:26,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 175 transitions. [2022-07-22 22:26:26,747 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 175 transitions. Word has length 84 [2022-07-22 22:26:26,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:26:26,749 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 175 transitions. [2022-07-22 22:26:26,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 10 states have internal predecessors, (38), 5 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2022-07-22 22:26:26,750 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 175 transitions. [2022-07-22 22:26:26,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-22 22:26:26,756 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:26:26,757 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:26:26,789 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 22:26:26,980 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 22:26:26,981 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:26:26,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:26:26,982 INFO L85 PathProgramCache]: Analyzing trace with hash -345725421, now seen corresponding path program 1 times [2022-07-22 22:26:26,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:26:26,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18563405] [2022-07-22 22:26:26,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:26:26,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:26:27,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:27,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:26:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:27,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:26:27,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:27,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 22:26:27,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:27,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:26:27,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:27,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 22:26:27,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:27,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-22 22:26:27,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:27,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-22 22:26:27,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:27,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 22:26:27,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:27,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:26:27,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:27,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-22 22:26:27,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:27,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-22 22:26:27,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:27,194 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-07-22 22:26:27,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:26:27,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18563405] [2022-07-22 22:26:27,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18563405] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:26:27,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900494483] [2022-07-22 22:26:27,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:26:27,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:26:27,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:26:27,197 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 22:26:27,198 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 22:26:27,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:26:27,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 40 conjunts are in the unsatisfiable core [2022-07-22 22:26:27,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:26:27,359 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-22 22:26:27,360 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 22:26:27,371 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-22 22:26:27,371 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 22:26:29,561 WARN L855 $PredicateComparison]: unable to prove that (or (exists ((v_aws_linked_list_back_~list.offset_BEFORE_CALL_6 Int) (v_aws_linked_list_back_~list.base_BEFORE_CALL_6 Int)) (not (= (select (select |c_#memory_$Pointer$.base| v_aws_linked_list_back_~list.base_BEFORE_CALL_6) (+ v_aws_linked_list_back_~list.offset_BEFORE_CALL_6 24)) 0))) (exists ((v_aws_linked_list_back_~list.offset_BEFORE_CALL_6 Int) (v_aws_linked_list_back_~list.base_BEFORE_CALL_6 Int)) (not (= (select (select |c_#memory_$Pointer$.offset| v_aws_linked_list_back_~list.base_BEFORE_CALL_6) (+ v_aws_linked_list_back_~list.offset_BEFORE_CALL_6 24)) 0)))) is different from true [2022-07-22 22:26:31,593 WARN L855 $PredicateComparison]: unable to prove that (and (or (exists ((v_aws_linked_list_back_~list.offset_BEFORE_CALL_6 Int) (v_aws_linked_list_back_~list.base_BEFORE_CALL_6 Int)) (not (= (select (select |c_#memory_$Pointer$.base| v_aws_linked_list_back_~list.base_BEFORE_CALL_6) (+ v_aws_linked_list_back_~list.offset_BEFORE_CALL_6 24)) 0))) (exists ((v_aws_linked_list_back_~list.offset_BEFORE_CALL_6 Int) (v_aws_linked_list_back_~list.base_BEFORE_CALL_6 Int)) (not (= (select (select |c_#memory_$Pointer$.offset| v_aws_linked_list_back_~list.base_BEFORE_CALL_6) (+ v_aws_linked_list_back_~list.offset_BEFORE_CALL_6 24)) 0)))) (let ((.cse0 (+ c_aws_linked_list_back_~list.offset 24))) (or (not (= (select (select |c_#memory_$Pointer$.base| c_aws_linked_list_back_~list.base) .cse0) 0)) (not (= (select (select |c_#memory_$Pointer$.offset| c_aws_linked_list_back_~list.base) .cse0) 0))))) is different from true [2022-07-22 22:26:33,623 WARN L855 $PredicateComparison]: unable to prove that (and (or (exists ((v_aws_linked_list_back_~list.offset_BEFORE_CALL_6 Int) (v_aws_linked_list_back_~list.base_BEFORE_CALL_6 Int)) (not (= (select (select |c_#memory_$Pointer$.base| v_aws_linked_list_back_~list.base_BEFORE_CALL_6) (+ v_aws_linked_list_back_~list.offset_BEFORE_CALL_6 24)) 0))) (exists ((v_aws_linked_list_back_~list.offset_BEFORE_CALL_6 Int) (v_aws_linked_list_back_~list.base_BEFORE_CALL_6 Int)) (not (= (select (select |c_#memory_$Pointer$.offset| v_aws_linked_list_back_~list.base_BEFORE_CALL_6) (+ v_aws_linked_list_back_~list.offset_BEFORE_CALL_6 24)) 0)))) (or (exists ((v_aws_linked_list_back_~list.offset_BEFORE_CALL_7 Int) (v_aws_linked_list_back_~list.base_BEFORE_CALL_7 Int)) (not (= (select (select |c_#memory_$Pointer$.offset| v_aws_linked_list_back_~list.base_BEFORE_CALL_7) (+ v_aws_linked_list_back_~list.offset_BEFORE_CALL_7 24)) 0))) (exists ((v_aws_linked_list_back_~list.offset_BEFORE_CALL_7 Int) (v_aws_linked_list_back_~list.base_BEFORE_CALL_7 Int)) (not (= (select (select |c_#memory_$Pointer$.base| v_aws_linked_list_back_~list.base_BEFORE_CALL_7) (+ v_aws_linked_list_back_~list.offset_BEFORE_CALL_7 24)) 0))))) is different from true [2022-07-22 22:26:35,777 WARN L855 $PredicateComparison]: unable to prove that (or (exists ((v_aws_linked_list_back_~list.offset_BEFORE_CALL_8 Int) (v_aws_linked_list_back_~list.base_BEFORE_CALL_8 Int)) (not (= (select (select |c_#memory_$Pointer$.offset| v_aws_linked_list_back_~list.base_BEFORE_CALL_8) (+ v_aws_linked_list_back_~list.offset_BEFORE_CALL_8 24)) 0))) (exists ((v_aws_linked_list_back_~list.offset_BEFORE_CALL_8 Int) (v_aws_linked_list_back_~list.base_BEFORE_CALL_8 Int)) (not (= (select (select |c_#memory_$Pointer$.base| v_aws_linked_list_back_~list.base_BEFORE_CALL_8) (+ v_aws_linked_list_back_~list.offset_BEFORE_CALL_8 24)) 0)))) is different from true [2022-07-22 22:26:37,838 WARN L855 $PredicateComparison]: unable to prove that (or (exists ((v_aws_linked_list_back_~list.base_BEFORE_CALL_9 Int) (v_aws_linked_list_back_~list.offset_BEFORE_CALL_9 Int)) (not (= (select (select |c_#memory_$Pointer$.base| v_aws_linked_list_back_~list.base_BEFORE_CALL_9) (+ v_aws_linked_list_back_~list.offset_BEFORE_CALL_9 24)) 0))) (exists ((v_aws_linked_list_back_~list.base_BEFORE_CALL_9 Int) (v_aws_linked_list_back_~list.offset_BEFORE_CALL_9 Int)) (not (= (select (select |c_#memory_$Pointer$.offset| v_aws_linked_list_back_~list.base_BEFORE_CALL_9) (+ v_aws_linked_list_back_~list.offset_BEFORE_CALL_9 24)) 0)))) is different from true [2022-07-22 22:26:45,905 WARN L233 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-22 22:26:54,038 WARN L233 SmtUtils]: Spent 6.04s on a formula simplification that was a NOOP. DAG size: 36 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-22 22:27:02,130 WARN L233 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 36 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-22 22:27:08,206 WARN L233 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-22 22:27:08,228 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 49 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 12 not checked. [2022-07-22 22:27:08,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 22:27:10,759 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-07-22 22:27:10,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900494483] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 22:27:10,760 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 22:27:10,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 17, 11] total 28 [2022-07-22 22:27:10,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843074028] [2022-07-22 22:27:10,760 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 22:27:10,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-07-22 22:27:10,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:27:10,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-07-22 22:27:10,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=439, Unknown=9, NotChecked=230, Total=756 [2022-07-22 22:27:10,764 INFO L87 Difference]: Start difference. First operand 131 states and 175 transitions. Second operand has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 26 states have internal predecessors, (96), 7 states have call successors, (23), 6 states have call predecessors, (23), 9 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2022-07-22 22:27:47,474 WARN L233 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-22 22:27:55,521 WARN L233 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 27 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-22 22:28:03,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:28:03,841 INFO L93 Difference]: Finished difference Result 270 states and 364 transitions. [2022-07-22 22:28:03,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-07-22 22:28:03,842 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 26 states have internal predecessors, (96), 7 states have call successors, (23), 6 states have call predecessors, (23), 9 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) Word has length 84 [2022-07-22 22:28:03,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:28:03,844 INFO L225 Difference]: With dead ends: 270 [2022-07-22 22:28:03,845 INFO L226 Difference]: Without dead ends: 153 [2022-07-22 22:28:03,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 167 SyntacticMatches, 8 SemanticMatches, 41 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 95.2s TimeCoverageRelationStatistics Valid=226, Invalid=1175, Unknown=25, NotChecked=380, Total=1806 [2022-07-22 22:28:03,846 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 145 mSDsluCounter, 1006 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 1120 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 828 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 22:28:03,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 1120 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 545 Invalid, 0 Unknown, 828 Unchecked, 0.4s Time] [2022-07-22 22:28:03,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-07-22 22:28:03,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 146. [2022-07-22 22:28:03,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 102 states have (on average 1.2549019607843137) internal successors, (128), 104 states have internal predecessors, (128), 30 states have call successors, (30), 15 states have call predecessors, (30), 13 states have return successors, (32), 26 states have call predecessors, (32), 29 states have call successors, (32) [2022-07-22 22:28:03,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 190 transitions. [2022-07-22 22:28:03,865 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 190 transitions. Word has length 84 [2022-07-22 22:28:03,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:28:03,865 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 190 transitions. [2022-07-22 22:28:03,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.5555555555555554) internal successors, (96), 26 states have internal predecessors, (96), 7 states have call successors, (23), 6 states have call predecessors, (23), 9 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2022-07-22 22:28:03,866 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 190 transitions. [2022-07-22 22:28:03,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-07-22 22:28:03,867 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:28:03,867 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:28:03,896 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 22:28:04,067 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 22:28:04,068 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:28:04,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:28:04,068 INFO L85 PathProgramCache]: Analyzing trace with hash 718708879, now seen corresponding path program 1 times [2022-07-22 22:28:04,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:28:04,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500889269] [2022-07-22 22:28:04,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:28:04,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:28:04,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:04,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:28:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:04,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:28:04,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:04,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 22:28:04,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:04,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:28:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:04,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 22:28:04,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:04,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-22 22:28:04,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:04,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 22:28:04,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:04,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 22:28:04,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:04,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:28:04,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:04,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 22:28:04,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:04,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-22 22:28:04,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:04,340 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-07-22 22:28:04,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:28:04,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500889269] [2022-07-22 22:28:04,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500889269] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:28:04,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491099646] [2022-07-22 22:28:04,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:28:04,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:28:04,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:28:04,344 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 22:28:04,348 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 22:28:04,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:04,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-22 22:28:04,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:28:04,666 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-22 22:28:04,667 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:28:04,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1491099646] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:28:04,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:28:04,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2022-07-22 22:28:04,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380554543] [2022-07-22 22:28:04,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:28:04,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 22:28:04,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:28:04,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 22:28:04,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-07-22 22:28:04,669 INFO L87 Difference]: Start difference. First operand 146 states and 190 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2022-07-22 22:28:04,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:28:04,924 INFO L93 Difference]: Finished difference Result 241 states and 320 transitions. [2022-07-22 22:28:04,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 22:28:04,924 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 88 [2022-07-22 22:28:04,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:28:04,926 INFO L225 Difference]: With dead ends: 241 [2022-07-22 22:28:04,926 INFO L226 Difference]: Without dead ends: 146 [2022-07-22 22:28:04,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=353, Unknown=0, NotChecked=0, Total=420 [2022-07-22 22:28:04,928 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 147 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 22:28:04,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 522 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 22:28:04,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-07-22 22:28:04,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2022-07-22 22:28:04,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 102 states have (on average 1.2450980392156863) internal successors, (127), 104 states have internal predecessors, (127), 30 states have call successors, (30), 15 states have call predecessors, (30), 13 states have return successors, (32), 26 states have call predecessors, (32), 29 states have call successors, (32) [2022-07-22 22:28:04,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 189 transitions. [2022-07-22 22:28:04,939 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 189 transitions. Word has length 88 [2022-07-22 22:28:04,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:28:04,940 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 189 transitions. [2022-07-22 22:28:04,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2022-07-22 22:28:04,940 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 189 transitions. [2022-07-22 22:28:04,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-07-22 22:28:04,941 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:28:04,941 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:28:04,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-22 22:28:05,155 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 22:28:05,155 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:28:05,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:28:05,156 INFO L85 PathProgramCache]: Analyzing trace with hash -619251908, now seen corresponding path program 1 times [2022-07-22 22:28:05,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:28:05,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725255303] [2022-07-22 22:28:05,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:28:05,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:28:05,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:05,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:28:05,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:05,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:28:05,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:05,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 22:28:05,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:05,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:28:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:05,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 22:28:05,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:05,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-22 22:28:05,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:05,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 22:28:05,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:05,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-22 22:28:05,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:05,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:28:05,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:05,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-22 22:28:05,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:05,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-22 22:28:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:05,333 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-22 22:28:05,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:28:05,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725255303] [2022-07-22 22:28:05,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725255303] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:28:05,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646413147] [2022-07-22 22:28:05,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:28:05,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:28:05,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:28:05,336 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 22:28:05,337 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 22:28:05,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:05,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-22 22:28:05,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:28:05,606 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-22 22:28:05,606 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:28:05,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646413147] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:28:05,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:28:05,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2022-07-22 22:28:05,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789304760] [2022-07-22 22:28:05,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:28:05,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-22 22:28:05,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:28:05,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-22 22:28:05,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2022-07-22 22:28:05,609 INFO L87 Difference]: Start difference. First operand 146 states and 189 transitions. Second operand has 10 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2022-07-22 22:28:05,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:28:05,925 INFO L93 Difference]: Finished difference Result 250 states and 334 transitions. [2022-07-22 22:28:05,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-22 22:28:05,926 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 90 [2022-07-22 22:28:05,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:28:05,927 INFO L225 Difference]: With dead ends: 250 [2022-07-22 22:28:05,927 INFO L226 Difference]: Without dead ends: 154 [2022-07-22 22:28:05,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=353, Unknown=0, NotChecked=0, Total=420 [2022-07-22 22:28:05,929 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 183 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 22:28:05,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 577 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 22:28:05,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2022-07-22 22:28:05,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 147. [2022-07-22 22:28:05,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 103 states have (on average 1.2427184466019416) internal successors, (128), 105 states have internal predecessors, (128), 30 states have call successors, (30), 15 states have call predecessors, (30), 13 states have return successors, (32), 26 states have call predecessors, (32), 29 states have call successors, (32) [2022-07-22 22:28:05,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 190 transitions. [2022-07-22 22:28:05,940 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 190 transitions. Word has length 90 [2022-07-22 22:28:05,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:28:05,940 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 190 transitions. [2022-07-22 22:28:05,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2022-07-22 22:28:05,941 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 190 transitions. [2022-07-22 22:28:05,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-22 22:28:05,942 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:28:05,942 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:28:05,966 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 22:28:06,163 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 22:28:06,163 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:28:06,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:28:06,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1442434984, now seen corresponding path program 1 times [2022-07-22 22:28:06,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:28:06,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195500654] [2022-07-22 22:28:06,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:28:06,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:28:06,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:06,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:28:06,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:06,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:28:06,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:06,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 22:28:06,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:06,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:28:06,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:06,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 22:28:06,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:06,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-22 22:28:06,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:06,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-22 22:28:06,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:06,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-22 22:28:06,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:06,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:28:06,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:06,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-22 22:28:06,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:06,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-22 22:28:06,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:06,299 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-07-22 22:28:06,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:28:06,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195500654] [2022-07-22 22:28:06,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195500654] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:28:06,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195788157] [2022-07-22 22:28:06,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:28:06,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:28:06,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:28:06,302 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 22:28:06,321 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 22:28:06,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:06,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 22:28:06,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:28:06,457 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-22 22:28:06,457 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:28:06,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195788157] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:28:06,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:28:06,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-07-22 22:28:06,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530621094] [2022-07-22 22:28:06,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:28:06,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 22:28:06,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:28:06,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 22:28:06,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-22 22:28:06,460 INFO L87 Difference]: Start difference. First operand 147 states and 190 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-22 22:28:06,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:28:06,477 INFO L93 Difference]: Finished difference Result 246 states and 330 transitions. [2022-07-22 22:28:06,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 22:28:06,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 89 [2022-07-22 22:28:06,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:28:06,479 INFO L225 Difference]: With dead ends: 246 [2022-07-22 22:28:06,479 INFO L226 Difference]: Without dead ends: 153 [2022-07-22 22:28:06,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-22 22:28:06,480 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 4 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 22:28:06,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 236 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 22:28:06,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-07-22 22:28:06,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 148. [2022-07-22 22:28:06,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 104 states have (on average 1.2403846153846154) internal successors, (129), 106 states have internal predecessors, (129), 30 states have call successors, (30), 15 states have call predecessors, (30), 13 states have return successors, (32), 26 states have call predecessors, (32), 29 states have call successors, (32) [2022-07-22 22:28:06,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 191 transitions. [2022-07-22 22:28:06,490 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 191 transitions. Word has length 89 [2022-07-22 22:28:06,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:28:06,490 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 191 transitions. [2022-07-22 22:28:06,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-22 22:28:06,491 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 191 transitions. [2022-07-22 22:28:06,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-22 22:28:06,492 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:28:06,492 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:28:06,519 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 22:28:06,707 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 22:28:06,708 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:28:06,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:28:06,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1174325196, now seen corresponding path program 1 times [2022-07-22 22:28:06,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:28:06,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220229471] [2022-07-22 22:28:06,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:28:06,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:28:06,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:06,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:28:06,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:06,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:28:06,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:06,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 22:28:06,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:06,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:28:06,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:06,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 22:28:06,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:06,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-22 22:28:06,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:06,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:28:06,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:06,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-22 22:28:06,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:06,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-22 22:28:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:06,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:28:06,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:06,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-22 22:28:06,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:06,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-22 22:28:06,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:06,901 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-22 22:28:06,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:28:06,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220229471] [2022-07-22 22:28:06,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220229471] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:28:06,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256485236] [2022-07-22 22:28:06,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:28:06,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:28:06,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:28:06,903 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 22:28:06,905 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 22:28:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:07,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 38 conjunts are in the unsatisfiable core [2022-07-22 22:28:07,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:28:07,112 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-22 22:28:07,112 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 22:28:07,125 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-22 22:28:07,126 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 22:28:07,716 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 50 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-22 22:28:07,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 22:28:08,149 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-07-22 22:28:08,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256485236] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 22:28:08,149 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 22:28:08,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 11, 9] total 21 [2022-07-22 22:28:08,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061034335] [2022-07-22 22:28:08,149 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 22:28:08,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-22 22:28:08,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:28:08,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-22 22:28:08,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-07-22 22:28:08,151 INFO L87 Difference]: Start difference. First operand 148 states and 191 transitions. Second operand has 21 states, 20 states have (on average 5.75) internal successors, (115), 20 states have internal predecessors, (115), 7 states have call successors, (26), 3 states have call predecessors, (26), 7 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2022-07-22 22:28:08,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:28:08,733 INFO L93 Difference]: Finished difference Result 261 states and 341 transitions. [2022-07-22 22:28:08,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-22 22:28:08,734 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 5.75) internal successors, (115), 20 states have internal predecessors, (115), 7 states have call successors, (26), 3 states have call predecessors, (26), 7 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) Word has length 99 [2022-07-22 22:28:08,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:28:08,736 INFO L225 Difference]: With dead ends: 261 [2022-07-22 22:28:08,736 INFO L226 Difference]: Without dead ends: 167 [2022-07-22 22:28:08,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 200 SyntacticMatches, 11 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=165, Invalid=957, Unknown=0, NotChecked=0, Total=1122 [2022-07-22 22:28:08,738 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 113 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1384 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 69 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 22:28:08,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1384 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 479 Invalid, 0 Unknown, 69 Unchecked, 0.3s Time] [2022-07-22 22:28:08,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-07-22 22:28:08,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 159. [2022-07-22 22:28:08,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 112 states have (on average 1.2410714285714286) internal successors, (139), 115 states have internal predecessors, (139), 30 states have call successors, (30), 16 states have call predecessors, (30), 16 states have return successors, (33), 27 states have call predecessors, (33), 29 states have call successors, (33) [2022-07-22 22:28:08,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 202 transitions. [2022-07-22 22:28:08,754 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 202 transitions. Word has length 99 [2022-07-22 22:28:08,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:28:08,755 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 202 transitions. [2022-07-22 22:28:08,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 5.75) internal successors, (115), 20 states have internal predecessors, (115), 7 states have call successors, (26), 3 states have call predecessors, (26), 7 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2022-07-22 22:28:08,755 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 202 transitions. [2022-07-22 22:28:08,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-22 22:28:08,756 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:28:08,756 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:28:08,777 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 22:28:08,967 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 22:28:08,968 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:28:08,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:28:08,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1176254157, now seen corresponding path program 1 times [2022-07-22 22:28:08,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:28:08,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206206751] [2022-07-22 22:28:08,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:28:08,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:28:08,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:09,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:28:09,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:09,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:28:09,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:09,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 22:28:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:09,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:28:09,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:09,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 22:28:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:09,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-22 22:28:09,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:09,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:28:09,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:09,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-22 22:28:09,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:09,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-22 22:28:09,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:09,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:28:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:09,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-22 22:28:09,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:09,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-22 22:28:09,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:09,220 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-07-22 22:28:09,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:28:09,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206206751] [2022-07-22 22:28:09,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206206751] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:28:09,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942171320] [2022-07-22 22:28:09,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:28:09,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:28:09,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:28:09,223 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 22:28:09,264 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 22:28:09,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:09,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 40 conjunts are in the unsatisfiable core [2022-07-22 22:28:09,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:28:09,450 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-22 22:28:09,450 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 22:28:09,464 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-22 22:28:09,464 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 22:28:10,238 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 47 proven. 5 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-22 22:28:10,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 22:28:10,710 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-07-22 22:28:10,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942171320] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 22:28:10,711 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 22:28:10,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 13, 11] total 26 [2022-07-22 22:28:10,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991222712] [2022-07-22 22:28:10,711 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 22:28:10,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-07-22 22:28:10,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:28:10,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-07-22 22:28:10,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=570, Unknown=0, NotChecked=0, Total=650 [2022-07-22 22:28:10,713 INFO L87 Difference]: Start difference. First operand 159 states and 202 transitions. Second operand has 26 states, 26 states have (on average 4.5) internal successors, (117), 25 states have internal predecessors, (117), 6 states have call successors, (26), 3 states have call predecessors, (26), 7 states have return successors, (25), 7 states have call predecessors, (25), 6 states have call successors, (25) [2022-07-22 22:28:12,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:28:12,011 INFO L93 Difference]: Finished difference Result 411 states and 566 transitions. [2022-07-22 22:28:12,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-07-22 22:28:12,011 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.5) internal successors, (117), 25 states have internal predecessors, (117), 6 states have call successors, (26), 3 states have call predecessors, (26), 7 states have return successors, (25), 7 states have call predecessors, (25), 6 states have call successors, (25) Word has length 99 [2022-07-22 22:28:12,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:28:12,014 INFO L225 Difference]: With dead ends: 411 [2022-07-22 22:28:12,014 INFO L226 Difference]: Without dead ends: 306 [2022-07-22 22:28:12,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 206 SyntacticMatches, 11 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=284, Invalid=1878, Unknown=0, NotChecked=0, Total=2162 [2022-07-22 22:28:12,016 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 236 mSDsluCounter, 2274 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 2424 SdHoareTripleChecker+Invalid, 1600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 345 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-22 22:28:12,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 2424 Invalid, 1600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1219 Invalid, 0 Unknown, 345 Unchecked, 0.7s Time] [2022-07-22 22:28:12,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2022-07-22 22:28:12,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 222. [2022-07-22 22:28:12,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 161 states have (on average 1.2546583850931676) internal successors, (202), 166 states have internal predecessors, (202), 36 states have call successors, (36), 20 states have call predecessors, (36), 24 states have return successors, (50), 35 states have call predecessors, (50), 35 states have call successors, (50) [2022-07-22 22:28:12,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 288 transitions. [2022-07-22 22:28:12,047 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 288 transitions. Word has length 99 [2022-07-22 22:28:12,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:28:12,048 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 288 transitions. [2022-07-22 22:28:12,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.5) internal successors, (117), 25 states have internal predecessors, (117), 6 states have call successors, (26), 3 states have call predecessors, (26), 7 states have return successors, (25), 7 states have call predecessors, (25), 6 states have call successors, (25) [2022-07-22 22:28:12,049 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 288 transitions. [2022-07-22 22:28:12,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-22 22:28:12,052 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:28:12,052 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:28:12,081 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 22:28:12,269 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 22:28:12,270 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:28:12,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:28:12,270 INFO L85 PathProgramCache]: Analyzing trace with hash 136318385, now seen corresponding path program 1 times [2022-07-22 22:28:12,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:28:12,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607359302] [2022-07-22 22:28:12,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:28:12,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:28:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:12,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:28:12,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:12,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:28:12,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:12,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 22:28:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:12,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:28:12,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:12,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 22:28:12,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:12,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-22 22:28:12,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:12,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:28:12,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:12,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-22 22:28:12,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:12,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-22 22:28:12,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:12,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:28:12,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:12,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-22 22:28:12,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:12,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-22 22:28:12,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:12,496 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-07-22 22:28:12,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:28:12,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607359302] [2022-07-22 22:28:12,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607359302] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:28:12,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906925200] [2022-07-22 22:28:12,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:28:12,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:28:12,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:28:12,498 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:28:12,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-22 22:28:12,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:12,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 44 conjunts are in the unsatisfiable core [2022-07-22 22:28:12,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:28:13,594 WARN L855 $PredicateComparison]: unable to prove that (or (exists ((|v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_5| Int) (|v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| Int)) (not (= (select (select |c_#memory_$Pointer$.base| |v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_5|) |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5|) 0))) (exists ((|v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_5| Int) (|v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5| Int)) (not (= (select (select |c_#memory_$Pointer$.offset| |v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_5|) |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_5|) 0)))) is different from true [2022-07-22 22:28:14,368 WARN L855 $PredicateComparison]: unable to prove that (or (exists ((v_aws_linked_list_back_~list.offset_BEFORE_CALL_33 Int) (v_aws_linked_list_back_~list.base_BEFORE_CALL_35 Int)) (not (= (select (select |c_#memory_$Pointer$.base| v_aws_linked_list_back_~list.base_BEFORE_CALL_35) v_aws_linked_list_back_~list.offset_BEFORE_CALL_33) 0))) (exists ((v_aws_linked_list_back_~list.offset_BEFORE_CALL_33 Int) (v_aws_linked_list_back_~list.base_BEFORE_CALL_35 Int)) (not (= (select (select |c_#memory_$Pointer$.offset| v_aws_linked_list_back_~list.base_BEFORE_CALL_35) v_aws_linked_list_back_~list.offset_BEFORE_CALL_33) 0)))) is different from true [2022-07-22 22:28:15,119 WARN L855 $PredicateComparison]: unable to prove that (or (exists ((v_aws_linked_list_back_~list.base_BEFORE_CALL_36 Int) (v_aws_linked_list_back_~list.offset_BEFORE_CALL_34 Int)) (not (= (select (select |c_#memory_$Pointer$.offset| v_aws_linked_list_back_~list.base_BEFORE_CALL_36) v_aws_linked_list_back_~list.offset_BEFORE_CALL_34) 0))) (exists ((v_aws_linked_list_back_~list.base_BEFORE_CALL_36 Int) (v_aws_linked_list_back_~list.offset_BEFORE_CALL_34 Int)) (not (= (select (select |c_#memory_$Pointer$.base| v_aws_linked_list_back_~list.base_BEFORE_CALL_36) v_aws_linked_list_back_~list.offset_BEFORE_CALL_34) 0)))) is different from true [2022-07-22 22:28:15,886 WARN L855 $PredicateComparison]: unable to prove that (or (exists ((v_aws_linked_list_back_~list.base_BEFORE_CALL_37 Int) (v_aws_linked_list_back_~list.offset_BEFORE_CALL_35 Int)) (not (= (select (select |c_#memory_$Pointer$.base| v_aws_linked_list_back_~list.base_BEFORE_CALL_37) v_aws_linked_list_back_~list.offset_BEFORE_CALL_35) 0))) (exists ((v_aws_linked_list_back_~list.base_BEFORE_CALL_37 Int) (v_aws_linked_list_back_~list.offset_BEFORE_CALL_35 Int)) (not (= (select (select |c_#memory_$Pointer$.offset| v_aws_linked_list_back_~list.base_BEFORE_CALL_37) v_aws_linked_list_back_~list.offset_BEFORE_CALL_35) 0)))) is different from true [2022-07-22 22:28:16,591 WARN L855 $PredicateComparison]: unable to prove that (or (exists ((v_aws_linked_list_back_~list.offset_BEFORE_CALL_36 Int) (v_aws_linked_list_back_~list.base_BEFORE_CALL_38 Int)) (not (= (select (select |c_#memory_$Pointer$.base| v_aws_linked_list_back_~list.base_BEFORE_CALL_38) v_aws_linked_list_back_~list.offset_BEFORE_CALL_36) 0))) (exists ((v_aws_linked_list_back_~list.offset_BEFORE_CALL_36 Int) (v_aws_linked_list_back_~list.base_BEFORE_CALL_38 Int)) (not (= (select (select |c_#memory_$Pointer$.offset| v_aws_linked_list_back_~list.base_BEFORE_CALL_38) v_aws_linked_list_back_~list.offset_BEFORE_CALL_36) 0)))) is different from true [2022-07-22 22:28:26,410 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 43 proven. 9 refuted. 0 times theorem prover too weak. 14 trivial. 12 not checked. [2022-07-22 22:28:26,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 22:28:27,466 INFO L356 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2022-07-22 22:28:27,466 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2022-07-22 22:28:27,474 INFO L356 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2022-07-22 22:28:27,474 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 12 [2022-07-22 22:28:27,493 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-07-22 22:28:27,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [906925200] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 22:28:27,494 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 22:28:27,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 18, 11] total 30 [2022-07-22 22:28:27,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269279665] [2022-07-22 22:28:27,494 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 22:28:27,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-07-22 22:28:27,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:28:27,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-07-22 22:28:27,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=526, Unknown=8, NotChecked=250, Total=870 [2022-07-22 22:28:27,496 INFO L87 Difference]: Start difference. First operand 222 states and 288 transitions. Second operand has 30 states, 30 states have (on average 4.066666666666666) internal successors, (122), 29 states have internal predecessors, (122), 6 states have call successors, (24), 7 states have call predecessors, (24), 9 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2022-07-22 22:28:31,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:28:31,415 INFO L93 Difference]: Finished difference Result 742 states and 1078 transitions. [2022-07-22 22:28:31,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-07-22 22:28:31,416 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.066666666666666) internal successors, (122), 29 states have internal predecessors, (122), 6 states have call successors, (24), 7 states have call predecessors, (24), 9 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) Word has length 101 [2022-07-22 22:28:31,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:28:31,419 INFO L225 Difference]: With dead ends: 742 [2022-07-22 22:28:31,420 INFO L226 Difference]: Without dead ends: 574 [2022-07-22 22:28:31,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 214 SyntacticMatches, 7 SemanticMatches, 45 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 17.7s TimeCoverageRelationStatistics Valid=328, Invalid=1402, Unknown=12, NotChecked=420, Total=2162 [2022-07-22 22:28:31,422 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 418 mSDsluCounter, 1418 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 2400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1537 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 22:28:31,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 1572 Invalid, 2400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 782 Invalid, 0 Unknown, 1537 Unchecked, 0.5s Time] [2022-07-22 22:28:31,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-07-22 22:28:31,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 414. [2022-07-22 22:28:31,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 318 states have (on average 1.2893081761006289) internal successors, (410), 328 states have internal predecessors, (410), 54 states have call successors, (54), 32 states have call predecessors, (54), 41 states have return successors, (114), 53 states have call predecessors, (114), 53 states have call successors, (114) [2022-07-22 22:28:31,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 578 transitions. [2022-07-22 22:28:31,473 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 578 transitions. Word has length 101 [2022-07-22 22:28:31,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:28:31,473 INFO L495 AbstractCegarLoop]: Abstraction has 414 states and 578 transitions. [2022-07-22 22:28:31,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.066666666666666) internal successors, (122), 29 states have internal predecessors, (122), 6 states have call successors, (24), 7 states have call predecessors, (24), 9 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2022-07-22 22:28:31,474 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 578 transitions. [2022-07-22 22:28:31,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-22 22:28:31,477 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:28:31,477 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:28:31,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-22 22:28:31,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-07-22 22:28:31,685 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:28:31,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:28:31,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1312319311, now seen corresponding path program 1 times [2022-07-22 22:28:31,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:28:31,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730367866] [2022-07-22 22:28:31,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:28:31,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:28:31,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:31,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:28:31,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:31,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:28:31,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:31,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 22:28:31,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:31,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:28:31,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:31,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 22:28:31,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:31,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-22 22:28:31,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:31,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:28:31,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:31,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-22 22:28:31,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:31,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-22 22:28:31,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:31,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:28:31,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:31,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-22 22:28:31,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:31,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-22 22:28:31,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:31,841 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-07-22 22:28:31,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:28:31,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730367866] [2022-07-22 22:28:31,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730367866] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:28:31,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527806846] [2022-07-22 22:28:31,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:28:31,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:28:31,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:28:31,843 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:28:31,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-22 22:28:32,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:32,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 22:28:32,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:28:32,025 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-22 22:28:32,025 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:28:32,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527806846] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:28:32,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:28:32,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2022-07-22 22:28:32,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579728286] [2022-07-22 22:28:32,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:28:32,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 22:28:32,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:28:32,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 22:28:32,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 22:28:32,028 INFO L87 Difference]: Start difference. First operand 414 states and 578 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-22 22:28:32,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:28:32,063 INFO L93 Difference]: Finished difference Result 610 states and 861 transitions. [2022-07-22 22:28:32,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 22:28:32,064 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 99 [2022-07-22 22:28:32,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:28:32,066 INFO L225 Difference]: With dead ends: 610 [2022-07-22 22:28:32,066 INFO L226 Difference]: Without dead ends: 368 [2022-07-22 22:28:32,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 22:28:32,068 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 8 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 22:28:32,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 357 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 22:28:32,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2022-07-22 22:28:32,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 360. [2022-07-22 22:28:32,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 275 states have (on average 1.269090909090909) internal successors, (349), 285 states have internal predecessors, (349), 48 states have call successors, (48), 28 states have call predecessors, (48), 36 states have return successors, (95), 46 states have call predecessors, (95), 47 states have call successors, (95) [2022-07-22 22:28:32,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 492 transitions. [2022-07-22 22:28:32,100 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 492 transitions. Word has length 99 [2022-07-22 22:28:32,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:28:32,101 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 492 transitions. [2022-07-22 22:28:32,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-22 22:28:32,101 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 492 transitions. [2022-07-22 22:28:32,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-22 22:28:32,103 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:28:32,104 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:28:32,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-22 22:28:32,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-22 22:28:32,329 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:28:32,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:28:32,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1894539913, now seen corresponding path program 1 times [2022-07-22 22:28:32,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:28:32,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483498976] [2022-07-22 22:28:32,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:28:32,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:28:32,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:32,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:28:32,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:32,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:28:32,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:32,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 22:28:32,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:32,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:28:32,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:32,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 22:28:32,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:32,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-22 22:28:32,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:32,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:28:32,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:32,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-22 22:28:32,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:32,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-22 22:28:32,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:32,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:28:32,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:32,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-22 22:28:32,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:32,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-22 22:28:32,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:32,449 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-07-22 22:28:32,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:28:32,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483498976] [2022-07-22 22:28:32,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483498976] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:28:32,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71368494] [2022-07-22 22:28:32,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:28:32,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:28:32,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:28:32,452 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:28:32,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-22 22:28:32,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:32,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 22:28:32,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:28:32,643 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-07-22 22:28:32,643 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:28:32,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71368494] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:28:32,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:28:32,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2022-07-22 22:28:32,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246481197] [2022-07-22 22:28:32,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:28:32,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 22:28:32,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:28:32,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 22:28:32,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 22:28:32,645 INFO L87 Difference]: Start difference. First operand 360 states and 492 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-22 22:28:32,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:28:32,670 INFO L93 Difference]: Finished difference Result 489 states and 676 transitions. [2022-07-22 22:28:32,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 22:28:32,670 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 101 [2022-07-22 22:28:32,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:28:32,672 INFO L225 Difference]: With dead ends: 489 [2022-07-22 22:28:32,673 INFO L226 Difference]: Without dead ends: 220 [2022-07-22 22:28:32,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 22:28:32,674 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 3 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 22:28:32,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 350 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 22:28:32,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-07-22 22:28:32,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 204. [2022-07-22 22:28:32,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 150 states have (on average 1.2) internal successors, (180), 155 states have internal predecessors, (180), 33 states have call successors, (33), 18 states have call predecessors, (33), 20 states have return successors, (43), 30 states have call predecessors, (43), 32 states have call successors, (43) [2022-07-22 22:28:32,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 256 transitions. [2022-07-22 22:28:32,688 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 256 transitions. Word has length 101 [2022-07-22 22:28:32,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:28:32,688 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 256 transitions. [2022-07-22 22:28:32,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-22 22:28:32,688 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 256 transitions. [2022-07-22 22:28:32,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-22 22:28:32,689 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:28:32,690 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:28:32,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-22 22:28:32,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-22 22:28:32,912 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:28:32,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:28:32,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1381429819, now seen corresponding path program 1 times [2022-07-22 22:28:32,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:28:32,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039805871] [2022-07-22 22:28:32,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:28:32,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:28:32,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:33,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:28:33,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:33,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:28:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:33,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 22:28:33,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:33,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:28:33,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:33,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 22:28:33,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:33,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-22 22:28:33,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:33,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:28:33,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:33,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-22 22:28:33,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:33,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-22 22:28:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:33,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:28:33,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:33,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-22 22:28:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:33,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-22 22:28:33,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:33,256 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-07-22 22:28:33,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:28:33,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039805871] [2022-07-22 22:28:33,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039805871] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:28:33,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048637773] [2022-07-22 22:28:33,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:28:33,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:28:33,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:28:33,260 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:28:33,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-22 22:28:33,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:33,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-22 22:28:33,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:28:33,589 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-07-22 22:28:33,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:28:33,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1048637773] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:28:33,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:28:33,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2022-07-22 22:28:33,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130693250] [2022-07-22 22:28:33,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:28:33,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 22:28:33,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:28:33,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 22:28:33,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-07-22 22:28:33,591 INFO L87 Difference]: Start difference. First operand 204 states and 256 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-22 22:28:33,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:28:33,768 INFO L93 Difference]: Finished difference Result 382 states and 484 transitions. [2022-07-22 22:28:33,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 22:28:33,768 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 102 [2022-07-22 22:28:33,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:28:33,770 INFO L225 Difference]: With dead ends: 382 [2022-07-22 22:28:33,770 INFO L226 Difference]: Without dead ends: 166 [2022-07-22 22:28:33,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=398, Unknown=0, NotChecked=0, Total=462 [2022-07-22 22:28:33,771 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 151 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 22:28:33,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 490 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 22:28:33,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-07-22 22:28:33,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 164. [2022-07-22 22:28:33,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 114 states have (on average 1.1578947368421053) internal successors, (132), 118 states have internal predecessors, (132), 31 states have call successors, (31), 17 states have call predecessors, (31), 18 states have return successors, (35), 28 states have call predecessors, (35), 30 states have call successors, (35) [2022-07-22 22:28:33,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 198 transitions. [2022-07-22 22:28:33,782 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 198 transitions. Word has length 102 [2022-07-22 22:28:33,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:28:33,782 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 198 transitions. [2022-07-22 22:28:33,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-22 22:28:33,782 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 198 transitions. [2022-07-22 22:28:33,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-22 22:28:33,783 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:28:33,784 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:28:33,812 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-22 22:28:34,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-22 22:28:34,009 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:28:34,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:28:34,009 INFO L85 PathProgramCache]: Analyzing trace with hash -904744676, now seen corresponding path program 1 times [2022-07-22 22:28:34,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:28:34,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968330110] [2022-07-22 22:28:34,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:28:34,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:28:34,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:34,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:28:34,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:34,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:28:34,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:34,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 22:28:34,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:34,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:28:34,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:34,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 22:28:34,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:34,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-22 22:28:34,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:34,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:28:34,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:34,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-22 22:28:34,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:34,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-22 22:28:34,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:34,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 22:28:34,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:34,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-22 22:28:34,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:34,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-22 22:28:34,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:34,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:28:34,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:34,383 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-07-22 22:28:34,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:28:34,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968330110] [2022-07-22 22:28:34,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968330110] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:28:34,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808824437] [2022-07-22 22:28:34,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:28:34,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:28:34,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:28:34,385 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:28:34,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-22 22:28:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:28:34,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 74 conjunts are in the unsatisfiable core [2022-07-22 22:28:34,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:28:34,582 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-22 22:28:34,695 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-07-22 22:28:34,706 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-22 22:28:34,706 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-07-22 22:28:34,713 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 5 treesize of output 3 [2022-07-22 22:28:34,724 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-07-22 22:28:34,724 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-07-22 22:28:34,789 INFO L356 Elim1Store]: treesize reduction 34, result has 24.4 percent of original size [2022-07-22 22:28:34,790 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-07-22 22:28:34,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-22 22:28:34,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-22 22:28:34,991 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_45| input size 40 context size 40 output size 40 at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:364) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:427) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:122) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:650) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:611) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:529) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:333) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java: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 22:28:34,994 INFO L158 Benchmark]: Toolchain (without parser) took 133496.69ms. Allocated memory was 109.1MB in the beginning and 283.1MB in the end (delta: 174.1MB). Free memory was 74.2MB in the beginning and 155.3MB in the end (delta: -81.1MB). Peak memory consumption was 93.9MB. Max. memory is 16.1GB. [2022-07-22 22:28:34,995 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 109.1MB. Free memory is still 66.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 22:28:34,995 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1703.08ms. Allocated memory was 109.1MB in the beginning and 167.8MB in the end (delta: 58.7MB). Free memory was 73.9MB in the beginning and 125.4MB in the end (delta: -51.5MB). Peak memory consumption was 62.3MB. Max. memory is 16.1GB. [2022-07-22 22:28:34,995 INFO L158 Benchmark]: Boogie Procedure Inliner took 128.32ms. Allocated memory is still 167.8MB. Free memory was 125.4MB in the beginning and 120.0MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-22 22:28:34,995 INFO L158 Benchmark]: Boogie Preprocessor took 72.04ms. Allocated memory is still 167.8MB. Free memory was 120.0MB in the beginning and 117.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 22:28:34,995 INFO L158 Benchmark]: RCFGBuilder took 608.18ms. Allocated memory is still 167.8MB. Free memory was 117.0MB in the beginning and 94.9MB in the end (delta: 22.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-07-22 22:28:34,996 INFO L158 Benchmark]: TraceAbstraction took 130979.05ms. Allocated memory was 167.8MB in the beginning and 283.1MB in the end (delta: 115.3MB). Free memory was 94.0MB in the beginning and 155.3MB in the end (delta: -61.3MB). Peak memory consumption was 54.7MB. Max. memory is 16.1GB. [2022-07-22 22:28:34,997 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 109.1MB. Free memory is still 66.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1703.08ms. Allocated memory was 109.1MB in the beginning and 167.8MB in the end (delta: 58.7MB). Free memory was 73.9MB in the beginning and 125.4MB in the end (delta: -51.5MB). Peak memory consumption was 62.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 128.32ms. Allocated memory is still 167.8MB. Free memory was 125.4MB in the beginning and 120.0MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.04ms. Allocated memory is still 167.8MB. Free memory was 120.0MB in the beginning and 117.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 608.18ms. Allocated memory is still 167.8MB. Free memory was 117.0MB in the beginning and 94.9MB in the end (delta: 22.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 130979.05ms. Allocated memory was 167.8MB in the beginning and 283.1MB in the end (delta: 115.3MB). Free memory was 94.0MB in the beginning and 155.3MB in the end (delta: -61.3MB). Peak memory consumption was 54.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: |v_#memory_$Pointer$.base_45| input size 40 context size 40 output size 40 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: |v_#memory_$Pointer$.base_45| input size 40 context size 40 output size 40: 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 22:28:35,037 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_linked_list_back_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 f57bc64edf303a057c8eafb48480d4e5b764bd411481261d53eb2a101eb82ae8 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 22:28:36,874 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 22:28:36,877 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 22:28:36,916 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 22:28:36,917 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 22:28:36,918 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 22:28:36,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 22:28:36,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 22:28:36,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 22:28:36,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 22:28:36,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 22:28:36,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 22:28:36,939 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 22:28:36,941 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 22:28:36,942 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 22:28:36,947 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 22:28:36,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 22:28:36,950 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 22:28:36,951 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 22:28:36,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 22:28:36,959 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 22:28:36,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 22:28:36,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 22:28:36,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 22:28:36,964 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 22:28:36,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 22:28:36,971 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 22:28:36,971 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 22:28:36,972 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 22:28:36,972 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 22:28:36,973 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 22:28:36,973 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 22:28:36,975 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 22:28:36,976 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 22:28:36,977 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 22:28:36,978 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 22:28:36,978 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 22:28:36,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 22:28:36,979 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 22:28:36,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 22:28:36,980 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 22:28:36,981 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 22:28:36,989 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-22 22:28:37,021 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 22:28:37,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 22:28:37,022 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 22:28:37,022 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 22:28:37,023 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 22:28:37,023 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 22:28:37,024 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 22:28:37,024 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 22:28:37,025 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 22:28:37,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 22:28:37,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 22:28:37,026 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 22:28:37,026 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 22:28:37,027 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 22:28:37,027 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-22 22:28:37,027 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-22 22:28:37,027 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-22 22:28:37,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 22:28:37,028 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 22:28:37,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 22:28:37,028 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 22:28:37,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 22:28:37,029 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 22:28:37,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 22:28:37,029 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 22:28:37,029 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 22:28:37,030 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 22:28:37,030 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-22 22:28:37,030 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-22 22:28:37,030 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 22:28:37,031 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 22:28:37,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 22:28:37,031 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-22 22:28:37,031 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f57bc64edf303a057c8eafb48480d4e5b764bd411481261d53eb2a101eb82ae8 [2022-07-22 22:28:37,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 22:28:37,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 22:28:37,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 22:28:37,370 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 22:28:37,371 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 22:28:37,372 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_linked_list_back_harness.i [2022-07-22 22:28:37,438 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c3ce49df/74233f7462ad4fa9bd07a76b32897bac/FLAG08baab271 [2022-07-22 22:28:38,086 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 22:28:38,087 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_back_harness.i [2022-07-22 22:28:38,135 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c3ce49df/74233f7462ad4fa9bd07a76b32897bac/FLAG08baab271 [2022-07-22 22:28:38,258 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c3ce49df/74233f7462ad4fa9bd07a76b32897bac [2022-07-22 22:28:38,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 22:28:38,261 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 22:28:38,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 22:28:38,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 22:28:38,265 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 22:28:38,266 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:28:38" (1/1) ... [2022-07-22 22:28:38,267 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13a2f503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:28:38, skipping insertion in model container [2022-07-22 22:28:38,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:28:38" (1/1) ... [2022-07-22 22:28:38,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 22:28:38,356 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 22:28:38,614 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_back_harness.i[4494,4507] [2022-07-22 22:28:38,620 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_back_harness.i[4554,4567] [2022-07-22 22:28:39,215 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:28:39,215 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:28:39,216 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:28:39,216 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:28:39,217 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:28:39,231 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:28:39,232 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:28:39,238 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:28:39,239 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:28:39,243 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:28:39,246 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:28:39,246 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:28:39,248 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:28:39,493 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-22 22:28:39,498 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-22 22:28:39,499 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-22 22:28:39,500 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-22 22:28:39,501 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-22 22:28:39,502 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-22 22:28:39,503 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-22 22:28:39,503 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-22 22:28:39,504 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-22 22:28:39,511 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-22 22:28:39,597 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-22 22:28:39,609 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 22:28:39,613 INFO L158 Benchmark]: Toolchain (without parser) took 1351.53ms. Allocated memory is still 58.7MB. Free memory was 40.6MB in the beginning and 25.6MB in the end (delta: 15.1MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2022-07-22 22:28:39,614 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 48.2MB. Free memory is still 30.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 22:28:39,615 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1349.09ms. Allocated memory is still 58.7MB. Free memory was 40.6MB in the beginning and 25.6MB in the end (delta: 15.1MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2022-07-22 22:28:39,616 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 48.2MB. Free memory is still 30.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1349.09ms. Allocated memory is still 58.7MB. Free memory was 40.6MB in the beginning and 25.6MB in the end (delta: 15.1MB). Peak memory consumption was 23.4MB. 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