./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_linked_list_push_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_push_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 d155cc00d5c2ba6f5ef1d5e883c6d133605de01ed97e4300960f893025d81fd1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 22:27:25,084 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 22:27:25,086 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 22:27:25,133 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 22:27:25,134 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 22:27:25,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 22:27:25,137 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 22:27:25,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 22:27:25,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 22:27:25,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 22:27:25,146 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 22:27:25,148 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 22:27:25,149 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 22:27:25,150 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 22:27:25,151 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 22:27:25,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 22:27:25,155 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 22:27:25,156 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 22:27:25,158 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 22:27:25,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 22:27:25,164 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 22:27:25,165 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 22:27:25,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 22:27:25,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 22:27:25,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 22:27:25,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 22:27:25,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 22:27:25,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 22:27:25,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 22:27:25,176 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 22:27:25,177 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 22:27:25,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 22:27:25,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 22:27:25,180 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 22:27:25,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 22:27:25,182 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 22:27:25,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 22:27:25,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 22:27:25,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 22:27:25,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 22:27:25,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 22:27:25,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 22:27:25,186 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-22 22:27:25,216 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 22:27:25,217 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 22:27:25,217 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 22:27:25,217 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 22:27:25,218 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 22:27:25,218 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 22:27:25,219 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 22:27:25,219 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 22:27:25,219 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 22:27:25,220 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 22:27:25,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 22:27:25,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 22:27:25,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 22:27:25,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 22:27:25,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 22:27:25,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 22:27:25,221 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 22:27:25,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 22:27:25,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 22:27:25,222 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 22:27:25,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 22:27:25,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 22:27:25,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 22:27:25,222 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 22:27:25,223 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 22:27:25,223 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 22:27:25,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 22:27:25,223 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 22:27:25,223 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 22:27:25,224 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 22:27:25,224 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d155cc00d5c2ba6f5ef1d5e883c6d133605de01ed97e4300960f893025d81fd1 [2022-07-22 22:27:25,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 22:27:25,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 22:27:25,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 22:27:25,494 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 22:27:25,494 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 22:27:25,496 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i [2022-07-22 22:27:25,547 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a5808e68/1724b23bded3417a9c3b0d39eb671553/FLAGfdd7115ad [2022-07-22 22:27:26,204 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 22:27:26,205 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i [2022-07-22 22:27:26,238 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a5808e68/1724b23bded3417a9c3b0d39eb671553/FLAGfdd7115ad [2022-07-22 22:27:26,351 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a5808e68/1724b23bded3417a9c3b0d39eb671553 [2022-07-22 22:27:26,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 22:27:26,354 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 22:27:26,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 22:27:26,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 22:27:26,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 22:27:26,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:27:26" (1/1) ... [2022-07-22 22:27:26,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@658ad9d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:27:26, skipping insertion in model container [2022-07-22 22:27:26,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:27:26" (1/1) ... [2022-07-22 22:27:26,366 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 22:27:26,438 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 22:27:26,706 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i[4499,4512] [2022-07-22 22:27:26,712 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i[4559,4572] [2022-07-22 22:27:27,504 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:27,507 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:27,508 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:27,508 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:27,509 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:27,519 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:27,521 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:27,526 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:27,527 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:27,530 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:27,531 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:27,531 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:27,532 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:27,766 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-22 22:27:27,767 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-22 22:27:27,768 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-22 22:27:27,769 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-22 22:27:27,770 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-22 22:27:27,771 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-22 22:27:27,771 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-22 22:27:27,771 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-22 22:27:27,773 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-22 22:27:27,777 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-22 22:27:27,888 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-22 22:27:27,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 22:27:27,946 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 22:27:27,968 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i[4499,4512] [2022-07-22 22:27:27,969 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i[4559,4572] [2022-07-22 22:27:28,002 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:28,003 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:28,011 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:28,012 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:28,014 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:28,023 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:28,023 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:28,024 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:28,024 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:28,025 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:28,025 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:28,026 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:28,026 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:28,108 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-22 22:27:28,109 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-22 22:27:28,109 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-22 22:27:28,110 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-22 22:27:28,116 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-22 22:27:28,116 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-22 22:27:28,116 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-22 22:27:28,117 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-22 22:27:28,118 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-22 22:27:28,118 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-22 22:27:28,135 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-22 22:27:28,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 22:27:28,281 INFO L208 MainTranslator]: Completed translation [2022-07-22 22:27:28,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:27:28 WrapperNode [2022-07-22 22:27:28,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 22:27:28,283 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 22:27:28,283 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 22:27:28,283 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 22:27:28,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:27:28" (1/1) ... [2022-07-22 22:27:28,343 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:27:28" (1/1) ... [2022-07-22 22:27:28,377 INFO L137 Inliner]: procedures = 679, calls = 1048, calls flagged for inlining = 52, calls inlined = 6, statements flattened = 150 [2022-07-22 22:27:28,378 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 22:27:28,379 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 22:27:28,379 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 22:27:28,379 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 22:27:28,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:27:28" (1/1) ... [2022-07-22 22:27:28,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:27:28" (1/1) ... [2022-07-22 22:27:28,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:27:28" (1/1) ... [2022-07-22 22:27:28,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:27:28" (1/1) ... [2022-07-22 22:27:28,404 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:27:28" (1/1) ... [2022-07-22 22:27:28,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:27:28" (1/1) ... [2022-07-22 22:27:28,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:27:28" (1/1) ... [2022-07-22 22:27:28,416 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 22:27:28,417 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 22:27:28,417 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 22:27:28,417 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 22:27:28,418 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:27:28" (1/1) ... [2022-07-22 22:27:28,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 22:27:28,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:27:28,456 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 22:27:28,485 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 22:27:28,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 22:27:28,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-22 22:27:28,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-22 22:27:28,506 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2022-07-22 22:27:28,506 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2022-07-22 22:27:28,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 22:27:28,507 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2022-07-22 22:27:28,508 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2022-07-22 22:27:28,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 22:27:28,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-22 22:27:28,508 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_insert_before [2022-07-22 22:27:28,509 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_insert_before [2022-07-22 22:27:28,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 22:27:28,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 22:27:28,509 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-22 22:27:28,509 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-22 22:27:28,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 22:27:28,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-22 22:27:28,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-22 22:27:28,510 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-07-22 22:27:28,510 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-07-22 22:27:28,510 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_prev_is_valid [2022-07-22 22:27:28,511 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_prev_is_valid [2022-07-22 22:27:28,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 22:27:28,748 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 22:27:28,750 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 22:27:28,989 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 22:27:28,995 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 22:27:28,996 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-22 22:27:28,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 10:27:28 BoogieIcfgContainer [2022-07-22 22:27:28,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 22:27:28,999 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 22:27:28,999 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 22:27:29,002 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 22:27:29,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 10:27:26" (1/3) ... [2022-07-22 22:27:29,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea05869 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 10:27:29, skipping insertion in model container [2022-07-22 22:27:29,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:27:28" (2/3) ... [2022-07-22 22:27:29,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea05869 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 10:27:29, skipping insertion in model container [2022-07-22 22:27:29,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 10:27:28" (3/3) ... [2022-07-22 22:27:29,004 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_linked_list_push_back_harness.i [2022-07-22 22:27:29,017 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 22:27:29,017 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 22:27:29,071 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 22:27:29,076 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@41f6035, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6f36ffd5 [2022-07-22 22:27:29,077 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 22:27:29,084 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 65 states have (on average 1.2923076923076924) internal successors, (84), 66 states have internal predecessors, (84), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2022-07-22 22:27:29,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-22 22:27:29,093 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:27:29,094 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:27:29,095 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:27:29,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:27:29,116 INFO L85 PathProgramCache]: Analyzing trace with hash 524704703, now seen corresponding path program 1 times [2022-07-22 22:27:29,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:27:29,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795881989] [2022-07-22 22:27:29,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:27:29,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:27:29,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:29,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:27:29,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:29,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:27:29,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:29,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 22:27:29,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:29,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 22:27:29,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:29,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-22 22:27:29,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:29,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-22 22:27:29,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:29,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-22 22:27:29,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:29,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 22:27:29,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:29,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-22 22:27:29,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:29,645 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-22 22:27:29,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:27:29,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795881989] [2022-07-22 22:27:29,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795881989] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:27:29,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:27:29,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 22:27:29,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560258490] [2022-07-22 22:27:29,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:27:29,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 22:27:29,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:27:29,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 22:27:29,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 22:27:29,675 INFO L87 Difference]: Start difference. First operand has 102 states, 65 states have (on average 1.2923076923076924) internal successors, (84), 66 states have internal predecessors, (84), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-22 22:27:29,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:27:29,734 INFO L93 Difference]: Finished difference Result 208 states and 310 transitions. [2022-07-22 22:27:29,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 22:27:29,737 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 73 [2022-07-22 22:27:29,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:27:29,744 INFO L225 Difference]: With dead ends: 208 [2022-07-22 22:27:29,745 INFO L226 Difference]: Without dead ends: 109 [2022-07-22 22:27:29,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 22:27:29,751 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 21 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 22:27:29,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 398 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 22:27:29,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-07-22 22:27:29,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 99. [2022-07-22 22:27:29,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 64 states have internal predecessors, (78), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-07-22 22:27:29,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 133 transitions. [2022-07-22 22:27:29,816 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 133 transitions. Word has length 73 [2022-07-22 22:27:29,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:27:29,817 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 133 transitions. [2022-07-22 22:27:29,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-22 22:27:29,817 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 133 transitions. [2022-07-22 22:27:29,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-22 22:27:29,820 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:27:29,820 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:27:29,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 22:27:29,821 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:27:29,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:27:29,821 INFO L85 PathProgramCache]: Analyzing trace with hash -125862913, now seen corresponding path program 1 times [2022-07-22 22:27:29,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:27:29,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690852648] [2022-07-22 22:27:29,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:27:29,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:27:29,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:29,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:27:29,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:29,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:27:29,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:29,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 22:27:29,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:30,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 22:27:30,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:30,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-22 22:27:30,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:30,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-22 22:27:30,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:30,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-22 22:27:30,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:30,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 22:27:30,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:30,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-22 22:27:30,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:30,059 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-22 22:27:30,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:27:30,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690852648] [2022-07-22 22:27:30,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690852648] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:27:30,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:27:30,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 22:27:30,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746019017] [2022-07-22 22:27:30,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:27:30,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 22:27:30,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:27:30,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 22:27:30,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 22:27:30,064 INFO L87 Difference]: Start difference. First operand 99 states and 133 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-22 22:27:30,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:27:30,107 INFO L93 Difference]: Finished difference Result 192 states and 265 transitions. [2022-07-22 22:27:30,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 22:27:30,108 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 73 [2022-07-22 22:27:30,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:27:30,110 INFO L225 Difference]: With dead ends: 192 [2022-07-22 22:27:30,110 INFO L226 Difference]: Without dead ends: 107 [2022-07-22 22:27:30,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 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 22:27:30,112 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 12 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 22:27:30,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 380 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 22:27:30,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-07-22 22:27:30,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 101. [2022-07-22 22:27:30,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 65 states have (on average 1.2307692307692308) internal successors, (80), 66 states have internal predecessors, (80), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-07-22 22:27:30,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 135 transitions. [2022-07-22 22:27:30,125 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 135 transitions. Word has length 73 [2022-07-22 22:27:30,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:27:30,126 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 135 transitions. [2022-07-22 22:27:30,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-22 22:27:30,126 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 135 transitions. [2022-07-22 22:27:30,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-22 22:27:30,128 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:27:30,128 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:27:30,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 22:27:30,129 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:27:30,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:27:30,129 INFO L85 PathProgramCache]: Analyzing trace with hash 2140518273, now seen corresponding path program 1 times [2022-07-22 22:27:30,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:27:30,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101738069] [2022-07-22 22:27:30,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:27:30,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:27:30,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:30,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:27:30,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:30,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:27:30,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:30,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 22:27:30,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:30,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 22:27:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:30,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-22 22:27:30,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:30,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-22 22:27:30,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:30,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-22 22:27:30,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:30,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 22:27:30,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:30,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-22 22:27:30,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:30,381 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-22 22:27:30,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:27:30,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101738069] [2022-07-22 22:27:30,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101738069] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:27:30,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:27:30,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 22:27:30,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350737204] [2022-07-22 22:27:30,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:27:30,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 22:27:30,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:27:30,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 22:27:30,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 22:27:30,392 INFO L87 Difference]: Start difference. First operand 101 states and 135 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-22 22:27:30,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:27:30,507 INFO L93 Difference]: Finished difference Result 192 states and 263 transitions. [2022-07-22 22:27:30,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 22:27:30,507 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 73 [2022-07-22 22:27:30,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:27:30,513 INFO L225 Difference]: With dead ends: 192 [2022-07-22 22:27:30,513 INFO L226 Difference]: Without dead ends: 105 [2022-07-22 22:27:30,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-22 22:27:30,520 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 22 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 22:27:30,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 555 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 22:27:30,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-07-22 22:27:30,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 104. [2022-07-22 22:27:30,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 68 states have (on average 1.2205882352941178) internal successors, (83), 69 states have internal predecessors, (83), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-07-22 22:27:30,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 138 transitions. [2022-07-22 22:27:30,536 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 138 transitions. Word has length 73 [2022-07-22 22:27:30,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:27:30,536 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 138 transitions. [2022-07-22 22:27:30,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-22 22:27:30,537 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 138 transitions. [2022-07-22 22:27:30,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-22 22:27:30,538 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:27:30,539 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:27:30,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 22:27:30,539 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:27:30,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:27:30,540 INFO L85 PathProgramCache]: Analyzing trace with hash 2124999555, now seen corresponding path program 1 times [2022-07-22 22:27:30,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:27:30,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380374421] [2022-07-22 22:27:30,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:27:30,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:27:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:30,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:27:30,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:30,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:27:30,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:30,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 22:27:30,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:30,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 22:27:30,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:30,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-22 22:27:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:30,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-22 22:27:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:30,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-22 22:27:30,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:30,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 22:27:30,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:30,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-22 22:27:30,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:30,745 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-22 22:27:30,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:27:30,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380374421] [2022-07-22 22:27:30,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380374421] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:27:30,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:27:30,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 22:27:30,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015997503] [2022-07-22 22:27:30,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:27:30,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 22:27:30,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:27:30,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 22:27:30,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-22 22:27:30,749 INFO L87 Difference]: Start difference. First operand 104 states and 138 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-22 22:27:30,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:27:30,821 INFO L93 Difference]: Finished difference Result 201 states and 268 transitions. [2022-07-22 22:27:30,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 22:27:30,821 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 73 [2022-07-22 22:27:30,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:27:30,823 INFO L225 Difference]: With dead ends: 201 [2022-07-22 22:27:30,823 INFO L226 Difference]: Without dead ends: 102 [2022-07-22 22:27:30,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-22 22:27:30,826 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 28 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 22:27:30,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 560 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 22:27:30,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-07-22 22:27:30,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2022-07-22 22:27:30,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 66 states have (on average 1.2121212121212122) internal successors, (80), 67 states have internal predecessors, (80), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-07-22 22:27:30,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 135 transitions. [2022-07-22 22:27:30,853 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 135 transitions. Word has length 73 [2022-07-22 22:27:30,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:27:30,854 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 135 transitions. [2022-07-22 22:27:30,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-22 22:27:30,854 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 135 transitions. [2022-07-22 22:27:30,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-22 22:27:30,855 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:27:30,855 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:27:30,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 22:27:30,856 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:27:30,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:27:30,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1956548997, now seen corresponding path program 1 times [2022-07-22 22:27:30,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:27:30,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533689837] [2022-07-22 22:27:30,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:27:30,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:27:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:30,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:27:30,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:30,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:27:31,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:31,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 22:27:31,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:31,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 22:27:31,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:31,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-22 22:27:31,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:31,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-22 22:27:31,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:31,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-22 22:27:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:31,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 22:27:31,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:31,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-22 22:27:31,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:31,138 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-22 22:27:31,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:27:31,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533689837] [2022-07-22 22:27:31,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533689837] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:27:31,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248139894] [2022-07-22 22:27:31,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:27:31,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:27:31,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:27:31,141 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 22:27:31,142 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 22:27:31,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:31,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 27 conjunts are in the unsatisfiable core [2022-07-22 22:27:31,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:27:31,598 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-07-22 22:27:31,598 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:27:31,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248139894] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:27:31,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:27:31,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 11 [2022-07-22 22:27:31,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097000037] [2022-07-22 22:27:31,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:27:31,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 22:27:31,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:27:31,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 22:27:31,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-07-22 22:27:31,600 INFO L87 Difference]: Start difference. First operand 102 states and 135 transitions. Second operand has 9 states, 7 states have (on average 5.857142857142857) internal successors, (41), 8 states have internal predecessors, (41), 4 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2022-07-22 22:27:31,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:27:31,843 INFO L93 Difference]: Finished difference Result 194 states and 259 transitions. [2022-07-22 22:27:31,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-22 22:27:31,843 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 5.857142857142857) internal successors, (41), 8 states have internal predecessors, (41), 4 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 73 [2022-07-22 22:27:31,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:27:31,849 INFO L225 Difference]: With dead ends: 194 [2022-07-22 22:27:31,849 INFO L226 Difference]: Without dead ends: 106 [2022-07-22 22:27:31,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-07-22 22:27:31,850 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 130 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 22:27:31,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 675 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 22:27:31,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-07-22 22:27:31,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 104. [2022-07-22 22:27:31,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 67 states have (on average 1.208955223880597) internal successors, (81), 69 states have internal predecessors, (81), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2022-07-22 22:27:31,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 138 transitions. [2022-07-22 22:27:31,868 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 138 transitions. Word has length 73 [2022-07-22 22:27:31,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:27:31,869 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 138 transitions. [2022-07-22 22:27:31,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 5.857142857142857) internal successors, (41), 8 states have internal predecessors, (41), 4 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2022-07-22 22:27:31,869 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 138 transitions. [2022-07-22 22:27:31,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-22 22:27:31,874 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:27:31,874 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:27:31,904 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 22:27:32,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:27:32,092 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:27:32,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:27:32,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1237560575, now seen corresponding path program 1 times [2022-07-22 22:27:32,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:27:32,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614459121] [2022-07-22 22:27:32,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:27:32,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:27:32,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:32,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:27:32,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:32,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:27:32,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:32,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 22:27:32,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:32,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-22 22:27:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:32,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-22 22:27:32,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:32,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-22 22:27:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:32,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-22 22:27:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:32,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-22 22:27:32,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:32,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-22 22:27:32,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:32,259 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-22 22:27:32,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:27:32,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614459121] [2022-07-22 22:27:32,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614459121] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:27:32,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:27:32,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 22:27:32,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862872988] [2022-07-22 22:27:32,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:27:32,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 22:27:32,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:27:32,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 22:27:32,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 22:27:32,262 INFO L87 Difference]: Start difference. First operand 104 states and 138 transitions. Second operand has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-22 22:27:32,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:27:32,393 INFO L93 Difference]: Finished difference Result 197 states and 264 transitions. [2022-07-22 22:27:32,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 22:27:32,393 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 75 [2022-07-22 22:27:32,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:27:32,394 INFO L225 Difference]: With dead ends: 197 [2022-07-22 22:27:32,395 INFO L226 Difference]: Without dead ends: 104 [2022-07-22 22:27:32,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-07-22 22:27:32,396 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 49 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 22:27:32,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 605 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 22:27:32,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-07-22 22:27:32,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2022-07-22 22:27:32,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 67 states have (on average 1.1940298507462686) internal successors, (80), 69 states have internal predecessors, (80), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2022-07-22 22:27:32,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 137 transitions. [2022-07-22 22:27:32,404 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 137 transitions. Word has length 75 [2022-07-22 22:27:32,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:27:32,405 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 137 transitions. [2022-07-22 22:27:32,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-22 22:27:32,405 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 137 transitions. [2022-07-22 22:27:32,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-22 22:27:32,406 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:27:32,406 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:27:32,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 22:27:32,406 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:27:32,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:27:32,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1187141198, now seen corresponding path program 1 times [2022-07-22 22:27:32,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:27:32,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150987641] [2022-07-22 22:27:32,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:27:32,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:27:32,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:32,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:27:32,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:32,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:27:32,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:32,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 22:27:32,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:32,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 22:27:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:32,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 22:27:32,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:32,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-22 22:27:32,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:32,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-22 22:27:32,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:32,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-22 22:27:32,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:32,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-22 22:27:32,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:32,571 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-22 22:27:32,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:27:32,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150987641] [2022-07-22 22:27:32,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150987641] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:27:32,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:27:32,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 22:27:32,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742335347] [2022-07-22 22:27:32,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:27:32,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 22:27:32,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:27:32,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 22:27:32,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-22 22:27:32,573 INFO L87 Difference]: Start difference. First operand 104 states and 137 transitions. Second operand has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 8 states have internal predecessors, (39), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-22 22:27:32,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:27:32,710 INFO L93 Difference]: Finished difference Result 206 states and 277 transitions. [2022-07-22 22:27:32,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 22:27:32,711 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 8 states have internal predecessors, (39), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 77 [2022-07-22 22:27:32,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:27:32,712 INFO L225 Difference]: With dead ends: 206 [2022-07-22 22:27:32,712 INFO L226 Difference]: Without dead ends: 112 [2022-07-22 22:27:32,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-07-22 22:27:32,714 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 75 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 22:27:32,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 698 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 22:27:32,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-07-22 22:27:32,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 105. [2022-07-22 22:27:32,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 68 states have (on average 1.1911764705882353) internal successors, (81), 70 states have internal predecessors, (81), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2022-07-22 22:27:32,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 138 transitions. [2022-07-22 22:27:32,726 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 138 transitions. Word has length 77 [2022-07-22 22:27:32,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:27:32,727 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 138 transitions. [2022-07-22 22:27:32,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 8 states have internal predecessors, (39), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-22 22:27:32,727 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 138 transitions. [2022-07-22 22:27:32,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-22 22:27:32,728 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:27:32,728 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:27:32,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-22 22:27:32,729 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:27:32,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:27:32,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1548809988, now seen corresponding path program 1 times [2022-07-22 22:27:32,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:27:32,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76288763] [2022-07-22 22:27:32,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:27:32,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:27:32,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:32,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:27:32,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:32,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:27:32,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:32,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 22:27:32,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:32,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 22:27:32,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:32,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-22 22:27:32,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:32,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-22 22:27:32,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:32,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-22 22:27:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:32,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-22 22:27:32,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:32,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 22:27:32,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:32,880 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-22 22:27:32,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:27:32,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76288763] [2022-07-22 22:27:32,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76288763] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:27:32,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:27:32,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 22:27:32,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791675881] [2022-07-22 22:27:32,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:27:32,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 22:27:32,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:27:32,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 22:27:32,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 22:27:32,882 INFO L87 Difference]: Start difference. First operand 105 states and 138 transitions. Second operand has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-22 22:27:32,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:27:32,947 INFO L93 Difference]: Finished difference Result 202 states and 273 transitions. [2022-07-22 22:27:32,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 22:27:32,947 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 78 [2022-07-22 22:27:32,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:27:32,949 INFO L225 Difference]: With dead ends: 202 [2022-07-22 22:27:32,949 INFO L226 Difference]: Without dead ends: 111 [2022-07-22 22:27:32,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-22 22:27:32,950 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 23 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 22:27:32,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 434 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 22:27:32,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-07-22 22:27:32,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 106. [2022-07-22 22:27:32,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 69 states have (on average 1.1884057971014492) internal successors, (82), 71 states have internal predecessors, (82), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2022-07-22 22:27:32,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 139 transitions. [2022-07-22 22:27:32,959 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 139 transitions. Word has length 78 [2022-07-22 22:27:32,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:27:32,959 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 139 transitions. [2022-07-22 22:27:32,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-22 22:27:32,960 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 139 transitions. [2022-07-22 22:27:32,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-22 22:27:32,960 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:27:32,961 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:27:32,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-22 22:27:32,961 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:27:32,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:27:32,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1185344546, now seen corresponding path program 1 times [2022-07-22 22:27:32,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:27:32,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636180872] [2022-07-22 22:27:32,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:27:32,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:27:33,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:33,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:27:33,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:33,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:27:33,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:33,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 22:27:33,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:33,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:27:33,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:33,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-22 22:27:33,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:33,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-22 22:27:33,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:33,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-22 22:27:33,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:33,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-22 22:27:33,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:33,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-22 22:27:33,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:33,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-22 22:27:33,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:33,146 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-22 22:27:33,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:27:33,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636180872] [2022-07-22 22:27:33,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636180872] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:27:33,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496021095] [2022-07-22 22:27:33,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:27:33,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:27:33,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:27:33,148 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 22:27:33,149 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 22:27:33,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:33,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 716 conjuncts, 29 conjunts are in the unsatisfiable core [2022-07-22 22:27:33,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:27:33,571 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-07-22 22:27:33,572 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:27:33,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496021095] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:27:33,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:27:33,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 12 [2022-07-22 22:27:33,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149690698] [2022-07-22 22:27:33,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:27:33,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-22 22:27:33,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:27:33,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-22 22:27:33,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-22 22:27:33,573 INFO L87 Difference]: Start difference. First operand 106 states and 139 transitions. Second operand has 10 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 5 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2022-07-22 22:27:33,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:27:33,849 INFO L93 Difference]: Finished difference Result 203 states and 268 transitions. [2022-07-22 22:27:33,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-22 22:27:33,850 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 5 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 86 [2022-07-22 22:27:33,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:27:33,851 INFO L225 Difference]: With dead ends: 203 [2022-07-22 22:27:33,851 INFO L226 Difference]: Without dead ends: 111 [2022-07-22 22:27:33,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2022-07-22 22:27:33,852 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 132 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 22:27:33,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 671 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 22:27:33,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-07-22 22:27:33,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 107. [2022-07-22 22:27:33,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 70 states have (on average 1.1857142857142857) internal successors, (83), 72 states have internal predecessors, (83), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2022-07-22 22:27:33,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 140 transitions. [2022-07-22 22:27:33,860 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 140 transitions. Word has length 86 [2022-07-22 22:27:33,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:27:33,860 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 140 transitions. [2022-07-22 22:27:33,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 5 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2022-07-22 22:27:33,860 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 140 transitions. [2022-07-22 22:27:33,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-07-22 22:27:33,861 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:27:33,861 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:27:33,887 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 22:27:34,083 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,SelfDestructingSolverStorable8 [2022-07-22 22:27:34,083 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:27:34,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:27:34,084 INFO L85 PathProgramCache]: Analyzing trace with hash 172862485, now seen corresponding path program 1 times [2022-07-22 22:27:34,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:27:34,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61184803] [2022-07-22 22:27:34,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:27:34,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:27:34,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:34,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:27:34,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:34,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:27:34,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:34,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 22:27:34,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:34,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:27:34,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:34,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-22 22:27:34,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:34,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-22 22:27:34,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:34,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 22:27:34,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:34,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-22 22:27:34,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:34,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-22 22:27:34,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:34,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 22:27:34,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:34,310 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-22 22:27:34,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:27:34,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61184803] [2022-07-22 22:27:34,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61184803] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:27:34,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626839194] [2022-07-22 22:27:34,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:27:34,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:27:34,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:27:34,313 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 22:27:34,335 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 22:27:34,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:34,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 31 conjunts are in the unsatisfiable core [2022-07-22 22:27:34,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:27:34,831 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-22 22:27:34,832 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:27:34,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626839194] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:27:34,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:27:34,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [8] total 17 [2022-07-22 22:27:34,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569940219] [2022-07-22 22:27:34,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:27:34,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-22 22:27:34,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:27:34,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-22 22:27:34,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2022-07-22 22:27:34,833 INFO L87 Difference]: Start difference. First operand 107 states and 140 transitions. Second operand has 11 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 5 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2022-07-22 22:27:35,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:27:35,174 INFO L93 Difference]: Finished difference Result 208 states and 274 transitions. [2022-07-22 22:27:35,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-22 22:27:35,175 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 5 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 88 [2022-07-22 22:27:35,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:27:35,175 INFO L225 Difference]: With dead ends: 208 [2022-07-22 22:27:35,176 INFO L226 Difference]: Without dead ends: 115 [2022-07-22 22:27:35,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=612, Unknown=0, NotChecked=0, Total=702 [2022-07-22 22:27:35,177 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 136 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 22:27:35,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 747 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 22:27:35,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-07-22 22:27:35,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 108. [2022-07-22 22:27:35,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 71 states have (on average 1.1830985915492958) internal successors, (84), 73 states have internal predecessors, (84), 28 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (29), 27 states have call predecessors, (29), 27 states have call successors, (29) [2022-07-22 22:27:35,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 141 transitions. [2022-07-22 22:27:35,184 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 141 transitions. Word has length 88 [2022-07-22 22:27:35,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:27:35,184 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 141 transitions. [2022-07-22 22:27:35,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 5 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2022-07-22 22:27:35,184 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 141 transitions. [2022-07-22 22:27:35,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-22 22:27:35,185 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:27:35,185 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2022-07-22 22:27:35,214 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 22:27:35,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:27:35,412 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:27:35,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:27:35,413 INFO L85 PathProgramCache]: Analyzing trace with hash 759251201, now seen corresponding path program 1 times [2022-07-22 22:27:35,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:27:35,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327683204] [2022-07-22 22:27:35,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:27:35,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:27:35,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:35,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:27:35,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:35,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:27:35,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:35,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 22:27:35,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:35,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:27:35,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:35,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 22:27:35,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:35,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 22:27:35,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:35,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-22 22:27:35,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:35,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-22 22:27:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:35,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-22 22:27:35,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:35,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-22 22:27:35,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:36,039 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-07-22 22:27:36,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:27:36,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327683204] [2022-07-22 22:27:36,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327683204] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:27:36,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:27:36,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-07-22 22:27:36,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351386863] [2022-07-22 22:27:36,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:27:36,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-22 22:27:36,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:27:36,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-22 22:27:36,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2022-07-22 22:27:36,042 INFO L87 Difference]: Start difference. First operand 108 states and 141 transitions. Second operand has 15 states, 13 states have (on average 4.153846153846154) internal successors, (54), 12 states have internal predecessors, (54), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-07-22 22:27:36,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:27:36,771 INFO L93 Difference]: Finished difference Result 164 states and 230 transitions. [2022-07-22 22:27:36,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 22:27:36,771 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.153846153846154) internal successors, (54), 12 states have internal predecessors, (54), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 89 [2022-07-22 22:27:36,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:27:36,774 INFO L225 Difference]: With dead ends: 164 [2022-07-22 22:27:36,774 INFO L226 Difference]: Without dead ends: 162 [2022-07-22 22:27:36,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2022-07-22 22:27:36,775 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 56 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 1306 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 22:27:36,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 1306 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 22:27:36,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-07-22 22:27:36,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 143. [2022-07-22 22:27:36,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 88 states have (on average 1.1590909090909092) internal successors, (102), 92 states have internal predecessors, (102), 43 states have call successors, (43), 9 states have call predecessors, (43), 11 states have return successors, (51), 41 states have call predecessors, (51), 42 states have call successors, (51) [2022-07-22 22:27:36,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 196 transitions. [2022-07-22 22:27:36,789 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 196 transitions. Word has length 89 [2022-07-22 22:27:36,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:27:36,790 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 196 transitions. [2022-07-22 22:27:36,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.153846153846154) internal successors, (54), 12 states have internal predecessors, (54), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-07-22 22:27:36,790 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 196 transitions. [2022-07-22 22:27:36,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-22 22:27:36,793 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:27:36,793 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:27:36,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-22 22:27:36,793 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:27:36,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:27:36,794 INFO L85 PathProgramCache]: Analyzing trace with hash -50095425, now seen corresponding path program 1 times [2022-07-22 22:27:36,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:27:36,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695409196] [2022-07-22 22:27:36,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:27:36,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:27:36,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:37,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:27:37,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:37,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:27:37,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:37,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 22:27:37,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:37,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:27:37,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:37,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 22:27:37,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:37,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 22:27:37,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:37,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-22 22:27:37,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:37,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-22 22:27:37,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:37,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-22 22:27:37,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:37,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-22 22:27:37,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:37,193 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-07-22 22:27:37,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:27:37,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695409196] [2022-07-22 22:27:37,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695409196] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:27:37,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:27:37,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-22 22:27:37,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142138101] [2022-07-22 22:27:37,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:27:37,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-22 22:27:37,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:27:37,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-22 22:27:37,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-07-22 22:27:37,196 INFO L87 Difference]: Start difference. First operand 143 states and 196 transitions. Second operand has 11 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-07-22 22:27:37,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:27:37,558 INFO L93 Difference]: Finished difference Result 243 states and 336 transitions. [2022-07-22 22:27:37,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-22 22:27:37,559 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 89 [2022-07-22 22:27:37,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:27:37,560 INFO L225 Difference]: With dead ends: 243 [2022-07-22 22:27:37,560 INFO L226 Difference]: Without dead ends: 149 [2022-07-22 22:27:37,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2022-07-22 22:27:37,561 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 54 mSDsluCounter, 741 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 22:27:37,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 856 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 22:27:37,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-07-22 22:27:37,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 148. [2022-07-22 22:27:37,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 92 states have (on average 1.1630434782608696) internal successors, (107), 97 states have internal predecessors, (107), 43 states have call successors, (43), 9 states have call predecessors, (43), 12 states have return successors, (56), 41 states have call predecessors, (56), 42 states have call successors, (56) [2022-07-22 22:27:37,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 206 transitions. [2022-07-22 22:27:37,574 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 206 transitions. Word has length 89 [2022-07-22 22:27:37,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:27:37,575 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 206 transitions. [2022-07-22 22:27:37,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2022-07-22 22:27:37,575 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 206 transitions. [2022-07-22 22:27:37,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-22 22:27:37,576 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:27:37,576 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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 22:27:37,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-22 22:27:37,576 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:27:37,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:27:37,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1974343619, now seen corresponding path program 1 times [2022-07-22 22:27:37,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:27:37,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376070972] [2022-07-22 22:27:37,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:27:37,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:27:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:37,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:27:37,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:37,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 22:27:37,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:37,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 22:27:37,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:37,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:27:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:37,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-22 22:27:37,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:37,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 22:27:37,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:37,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-22 22:27:37,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:37,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-22 22:27:37,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:37,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-22 22:27:37,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:37,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-22 22:27:37,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:37,968 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-22 22:27:37,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:27:37,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376070972] [2022-07-22 22:27:37,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376070972] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:27:37,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229876035] [2022-07-22 22:27:37,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:27:37,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:27:37,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:27:37,970 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 22:27:37,972 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 22:27:38,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:27:38,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 781 conjuncts, 71 conjunts are in the unsatisfiable core [2022-07-22 22:27:38,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:27:38,423 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 22:27:38,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:27:38,433 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-07-22 22:27:38,519 INFO L356 Elim1Store]: treesize reduction 38, result has 22.4 percent of original size [2022-07-22 22:27:38,521 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-07-22 22:27:38,550 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-07-22 22:27:38,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:27:38,735 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_33| input size 44 context size 44 output size 44 at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:364) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:427) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:122) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:650) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:611) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:529) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:333) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java: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 22:27:38,739 INFO L158 Benchmark]: Toolchain (without parser) took 12384.70ms. Allocated memory was 121.6MB in the beginning and 262.1MB in the end (delta: 140.5MB). Free memory was 90.3MB in the beginning and 96.1MB in the end (delta: -5.9MB). Peak memory consumption was 134.9MB. Max. memory is 16.1GB. [2022-07-22 22:27:38,739 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 121.6MB. Free memory is still 78.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 22:27:38,739 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1927.32ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 89.8MB in the beginning and 94.8MB in the end (delta: -5.0MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. [2022-07-22 22:27:38,739 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.42ms. Allocated memory is still 146.8MB. Free memory was 94.8MB in the beginning and 89.4MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-22 22:27:38,739 INFO L158 Benchmark]: Boogie Preprocessor took 37.47ms. Allocated memory is still 146.8MB. Free memory was 89.4MB in the beginning and 86.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 22:27:38,740 INFO L158 Benchmark]: RCFGBuilder took 581.13ms. Allocated memory is still 146.8MB. Free memory was 86.4MB in the beginning and 61.0MB in the end (delta: 25.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-07-22 22:27:38,740 INFO L158 Benchmark]: TraceAbstraction took 9739.21ms. Allocated memory was 146.8MB in the beginning and 262.1MB in the end (delta: 115.3MB). Free memory was 60.1MB in the beginning and 96.1MB in the end (delta: -36.0MB). Peak memory consumption was 80.1MB. Max. memory is 16.1GB. [2022-07-22 22:27:38,741 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 121.6MB. Free memory is still 78.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1927.32ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 89.8MB in the beginning and 94.8MB in the end (delta: -5.0MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.42ms. Allocated memory is still 146.8MB. Free memory was 94.8MB in the beginning and 89.4MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.47ms. Allocated memory is still 146.8MB. Free memory was 89.4MB in the beginning and 86.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 581.13ms. Allocated memory is still 146.8MB. Free memory was 86.4MB in the beginning and 61.0MB in the end (delta: 25.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 9739.21ms. Allocated memory was 146.8MB in the beginning and 262.1MB in the end (delta: 115.3MB). Free memory was 60.1MB in the beginning and 96.1MB in the end (delta: -36.0MB). Peak memory consumption was 80.1MB. 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_33| input size 44 context size 44 output size 44 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: |v_#memory_$Pointer$.base_33| input size 44 context size 44 output size 44: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:364) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-07-22 22:27:38,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_linked_list_push_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 d155cc00d5c2ba6f5ef1d5e883c6d133605de01ed97e4300960f893025d81fd1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 22:27:40,780 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 22:27:40,782 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 22:27:40,826 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 22:27:40,826 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 22:27:40,828 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 22:27:40,831 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 22:27:40,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 22:27:40,836 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 22:27:40,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 22:27:40,842 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 22:27:40,846 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 22:27:40,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 22:27:40,848 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 22:27:40,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 22:27:40,853 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 22:27:40,854 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 22:27:40,855 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 22:27:40,857 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 22:27:40,862 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 22:27:40,864 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 22:27:40,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 22:27:40,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 22:27:40,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 22:27:40,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 22:27:40,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 22:27:40,876 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 22:27:40,877 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 22:27:40,878 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 22:27:40,878 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 22:27:40,879 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 22:27:40,879 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 22:27:40,881 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 22:27:40,881 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 22:27:40,883 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 22:27:40,884 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 22:27:40,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 22:27:40,884 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 22:27:40,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 22:27:40,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 22:27:40,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 22:27:40,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 22:27:40,892 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-22 22:27:40,930 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 22:27:40,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 22:27:40,931 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 22:27:40,931 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 22:27:40,932 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 22:27:40,932 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 22:27:40,933 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 22:27:40,933 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 22:27:40,934 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 22:27:40,934 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 22:27:40,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 22:27:40,935 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 22:27:40,935 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 22:27:40,935 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 22:27:40,935 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-22 22:27:40,936 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-22 22:27:40,936 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-22 22:27:40,936 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 22:27:40,936 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 22:27:40,936 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 22:27:40,937 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 22:27:40,937 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 22:27:40,937 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 22:27:40,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 22:27:40,937 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 22:27:40,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 22:27:40,938 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 22:27:40,938 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-22 22:27:40,938 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-22 22:27:40,938 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 22:27:40,938 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 22:27:40,939 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 22:27:40,939 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-22 22:27:40,939 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d155cc00d5c2ba6f5ef1d5e883c6d133605de01ed97e4300960f893025d81fd1 [2022-07-22 22:27:41,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 22:27:41,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 22:27:41,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 22:27:41,258 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 22:27:41,259 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 22:27:41,261 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i [2022-07-22 22:27:41,325 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1534b769f/c446196763e1462e9771ce4321fc9d86/FLAG8fbf9b8c4 [2022-07-22 22:27:42,054 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 22:27:42,055 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i [2022-07-22 22:27:42,084 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1534b769f/c446196763e1462e9771ce4321fc9d86/FLAG8fbf9b8c4 [2022-07-22 22:27:42,307 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1534b769f/c446196763e1462e9771ce4321fc9d86 [2022-07-22 22:27:42,310 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 22:27:42,312 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 22:27:42,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 22:27:42,316 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 22:27:42,322 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 22:27:42,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:27:42" (1/1) ... [2022-07-22 22:27:42,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a64f736 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:27:42, skipping insertion in model container [2022-07-22 22:27:42,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:27:42" (1/1) ... [2022-07-22 22:27:42,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 22:27:42,409 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 22:27:42,654 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i[4499,4512] [2022-07-22 22:27:42,661 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_push_back_harness.i[4559,4572] [2022-07-22 22:27:43,228 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:43,230 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:43,231 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:43,232 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:43,233 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:43,245 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:43,246 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:43,247 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:43,248 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:43,249 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:43,250 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:43,250 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:43,250 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:27:43,475 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-22 22:27:43,476 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-22 22:27:43,476 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-22 22:27:43,477 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-22 22:27:43,478 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-22 22:27:43,479 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-22 22:27:43,479 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-22 22:27:43,480 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-22 22:27:43,480 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-22 22:27:43,481 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-22 22:27:43,573 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-22 22:27:43,591 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 22:27:43,596 INFO L158 Benchmark]: Toolchain (without parser) took 1283.15ms. Allocated memory is still 58.7MB. Free memory was 36.4MB in the beginning and 23.0MB in the end (delta: 13.4MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2022-07-22 22:27:43,596 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 46.1MB. Free memory was 28.6MB in the beginning and 28.5MB in the end (delta: 43.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 22:27:43,597 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1278.75ms. Allocated memory is still 58.7MB. Free memory was 36.3MB in the beginning and 23.0MB in the end (delta: 13.3MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2022-07-22 22:27:43,598 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 46.1MB. Free memory was 28.6MB in the beginning and 28.5MB in the end (delta: 43.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1278.75ms. Allocated memory is still 58.7MB. Free memory was 36.3MB in the beginning and 23.0MB in the end (delta: 13.3MB). Peak memory consumption was 19.0MB. 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