./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4d014703 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_priority_queue_init_dynamic_harness-1.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 f4db5fb03820aea666082345ea177387bf1c218ce33dad19402cb646ed5abf58 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-02 13:50:15,093 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 13:50:15,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 13:50:15,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 13:50:15,137 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 13:50:15,139 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 13:50:15,140 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 13:50:15,143 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 13:50:15,144 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 13:50:15,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 13:50:15,146 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 13:50:15,148 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 13:50:15,148 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 13:50:15,153 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 13:50:15,154 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 13:50:15,155 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 13:50:15,158 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 13:50:15,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 13:50:15,161 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 13:50:15,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 13:50:15,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 13:50:15,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 13:50:15,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 13:50:15,171 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 13:50:15,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 13:50:15,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 13:50:15,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 13:50:15,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 13:50:15,176 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 13:50:15,176 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 13:50:15,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 13:50:15,177 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 13:50:15,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 13:50:15,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 13:50:15,180 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 13:50:15,180 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 13:50:15,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 13:50:15,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 13:50:15,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 13:50:15,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 13:50:15,182 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 13:50:15,183 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-02 13:50:15,204 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 13:50:15,206 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 13:50:15,207 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 13:50:15,207 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 13:50:15,208 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 13:50:15,208 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 13:50:15,208 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 13:50:15,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 13:50:15,209 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 13:50:15,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 13:50:15,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 13:50:15,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 13:50:15,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 13:50:15,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 13:50:15,210 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 13:50:15,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 13:50:15,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 13:50:15,211 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 13:50:15,211 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 13:50:15,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 13:50:15,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 13:50:15,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 13:50:15,212 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 13:50:15,212 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 13:50:15,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 13:50:15,212 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 13:50:15,212 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 13:50:15,213 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 13:50:15,214 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 13:50:15,214 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4db5fb03820aea666082345ea177387bf1c218ce33dad19402cb646ed5abf58 [2021-11-02 13:50:15,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 13:50:15,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 13:50:15,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 13:50:15,404 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 13:50:15,405 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 13:50:15,406 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i [2021-11-02 13:50:15,457 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d5dc8e48/443e6e45fc8b46d8b375a4130fe8fb66/FLAGf6be74f3d [2021-11-02 13:50:16,035 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 13:50:16,035 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i [2021-11-02 13:50:16,058 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d5dc8e48/443e6e45fc8b46d8b375a4130fe8fb66/FLAGf6be74f3d [2021-11-02 13:50:16,432 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d5dc8e48/443e6e45fc8b46d8b375a4130fe8fb66 [2021-11-02 13:50:16,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 13:50:16,436 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 13:50:16,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 13:50:16,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 13:50:16,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 13:50:16,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 01:50:16" (1/1) ... [2021-11-02 13:50:16,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@147561f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 01:50:16, skipping insertion in model container [2021-11-02 13:50:16,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 01:50:16" (1/1) ... [2021-11-02 13:50:16,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 13:50:16,516 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 13:50:16,678 WARN L228 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_priority_queue_init_dynamic_harness-1.i[4505,4518] [2021-11-02 13:50:16,681 WARN L228 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_priority_queue_init_dynamic_harness-1.i[4565,4578] [2021-11-02 13:50:16,690 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-02 13:50:16,693 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-02 13:50:17,082 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-02 13:50:17,129 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 13:50:17,137 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 13:50:17,137 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 13:50:17,138 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 13:50:17,138 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 13:50:17,154 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 13:50:17,156 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 13:50:17,161 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 13:50:17,162 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 13:50:17,331 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-02 13:50:17,332 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-02 13:50:17,332 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-02 13:50:17,333 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-02 13:50:17,334 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-02 13:50:17,334 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-02 13:50:17,334 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-02 13:50:17,335 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-02 13:50:17,335 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-02 13:50:17,336 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-02 13:50:17,440 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 13:50:17,440 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 13:50:17,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 13:50:17,486 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 13:50:17,502 WARN L228 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_priority_queue_init_dynamic_harness-1.i[4505,4518] [2021-11-02 13:50:17,504 WARN L228 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_priority_queue_init_dynamic_harness-1.i[4565,4578] [2021-11-02 13:50:17,508 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-02 13:50:17,508 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-02 13:50:17,544 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-02 13:50:17,558 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 13:50:17,567 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 13:50:17,567 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 13:50:17,567 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 13:50:17,568 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 13:50:17,571 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 13:50:17,573 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 13:50:17,573 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 13:50:17,573 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 13:50:17,597 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-02 13:50:17,598 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-02 13:50:17,598 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-02 13:50:17,599 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-02 13:50:17,600 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-02 13:50:17,600 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-02 13:50:17,601 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-02 13:50:17,603 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-02 13:50:17,604 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-02 13:50:17,604 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-02 13:50:17,635 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 13:50:17,636 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-02 13:50:17,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 13:50:17,864 INFO L208 MainTranslator]: Completed translation [2021-11-02 13:50:17,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 01:50:17 WrapperNode [2021-11-02 13:50:17,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 13:50:17,865 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 13:50:17,865 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 13:50:17,865 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 13:50:17,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 01:50:17" (1/1) ... [2021-11-02 13:50:17,924 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 01:50:17" (1/1) ... [2021-11-02 13:50:17,991 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 13:50:17,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 13:50:17,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 13:50:17,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 13:50:17,998 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 01:50:17" (1/1) ... [2021-11-02 13:50:17,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 01:50:17" (1/1) ... [2021-11-02 13:50:18,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 01:50:17" (1/1) ... [2021-11-02 13:50:18,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 01:50:17" (1/1) ... [2021-11-02 13:50:18,075 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 01:50:17" (1/1) ... [2021-11-02 13:50:18,089 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 01:50:17" (1/1) ... [2021-11-02 13:50:18,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 01:50:17" (1/1) ... [2021-11-02 13:50:18,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 13:50:18,115 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 13:50:18,115 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 13:50:18,115 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 13:50:18,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 01:50:17" (1/1) ... [2021-11-02 13:50:18,121 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 13:50:18,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-02 13:50:18,146 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) [2021-11-02 13:50:18,166 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 [2021-11-02 13:50:18,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 13:50:18,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 13:50:18,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 13:50:18,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 13:50:18,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 13:50:18,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 13:50:18,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 13:50:18,176 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-02 13:50:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 13:50:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 13:50:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 13:50:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 13:50:21,937 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 13:50:21,937 INFO L299 CfgBuilder]: Removed 215 assume(true) statements. [2021-11-02 13:50:21,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 01:50:21 BoogieIcfgContainer [2021-11-02 13:50:21,939 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 13:50:21,942 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 13:50:21,942 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 13:50:21,944 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 13:50:21,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 01:50:16" (1/3) ... [2021-11-02 13:50:21,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@355c9f79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 01:50:21, skipping insertion in model container [2021-11-02 13:50:21,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 01:50:17" (2/3) ... [2021-11-02 13:50:21,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@355c9f79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 01:50:21, skipping insertion in model container [2021-11-02 13:50:21,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 01:50:21" (3/3) ... [2021-11-02 13:50:21,947 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_dynamic_harness-1.i [2021-11-02 13:50:21,950 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 13:50:21,950 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-11-02 13:50:21,981 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 13:50:21,985 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-02 13:50:21,986 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-11-02 13:50:22,005 INFO L276 IsEmpty]: Start isEmpty. Operand has 284 states, 270 states have (on average 1.4592592592592593) internal successors, (394), 283 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 13:50:22,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-02 13:50:22,011 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 13:50:22,011 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 13:50:22,011 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-02 13:50:22,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 13:50:22,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1584459694, now seen corresponding path program 1 times [2021-11-02 13:50:22,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 13:50:22,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28924461] [2021-11-02 13:50:22,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 13:50:22,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 13:50:22,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 13:50:22,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 13:50:22,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 13:50:22,504 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28924461] [2021-11-02 13:50:22,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28924461] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 13:50:22,505 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 13:50:22,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 13:50:22,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129098572] [2021-11-02 13:50:22,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-02 13:50:22,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 13:50:22,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-02 13:50:22,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 13:50:22,542 INFO L87 Difference]: Start difference. First operand has 284 states, 270 states have (on average 1.4592592592592593) internal successors, (394), 283 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 13:50:24,982 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 13:50:26,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 13:50:26,511 INFO L93 Difference]: Finished difference Result 562 states and 781 transitions. [2021-11-02 13:50:26,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 13:50:26,513 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-02 13:50:26,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 13:50:26,519 INFO L225 Difference]: With dead ends: 562 [2021-11-02 13:50:26,524 INFO L226 Difference]: Without dead ends: 277 [2021-11-02 13:50:26,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.04ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 13:50:26,530 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3585.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.05ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3899.06ms IncrementalHoareTripleChecker+Time [2021-11-02 13:50:26,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 353 Unknown, 0 Unchecked, 4.05ms Time], IncrementalHoareTripleChecker [0 Valid, 352 Invalid, 1 Unknown, 0 Unchecked, 3899.06ms Time] [2021-11-02 13:50:26,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2021-11-02 13:50:26,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2021-11-02 13:50:26,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 264 states have (on average 1.3068181818181819) internal successors, (345), 276 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 13:50:26,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 345 transitions. [2021-11-02 13:50:26,575 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 345 transitions. Word has length 44 [2021-11-02 13:50:26,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 13:50:26,575 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 345 transitions. [2021-11-02 13:50:26,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 13:50:26,576 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 345 transitions. [2021-11-02 13:50:26,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-02 13:50:26,577 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 13:50:26,577 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 13:50:26,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 13:50:26,577 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-02 13:50:26,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 13:50:26,578 INFO L85 PathProgramCache]: Analyzing trace with hash -90645083, now seen corresponding path program 1 times [2021-11-02 13:50:26,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 13:50:26,578 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745687794] [2021-11-02 13:50:26,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 13:50:26,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 13:50:26,633 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 13:50:26,633 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1276705895] [2021-11-02 13:50:26,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 13:50:26,634 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 13:50:26,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-02 13:50:26,635 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) [2021-11-02 13:50:26,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-02 13:50:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 13:50:27,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 2514 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-02 13:50:27,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 13:50:27,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 13:50:27,442 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-02 13:50:27,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 13:50:27,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745687794] [2021-11-02 13:50:27,442 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-02 13:50:27,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276705895] [2021-11-02 13:50:27,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276705895] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 13:50:27,443 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 13:50:27,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 13:50:27,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980820831] [2021-11-02 13:50:27,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 13:50:27,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 13:50:27,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 13:50:27,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 13:50:27,444 INFO L87 Difference]: Start difference. First operand 277 states and 345 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 13:50:29,514 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 13:50:30,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 13:50:30,790 INFO L93 Difference]: Finished difference Result 523 states and 656 transitions. [2021-11-02 13:50:30,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 13:50:30,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-11-02 13:50:30,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 13:50:30,792 INFO L225 Difference]: With dead ends: 523 [2021-11-02 13:50:30,792 INFO L226 Difference]: Without dead ends: 277 [2021-11-02 13:50:30,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.36ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 13:50:30,794 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 313 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2995.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.18ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3274.64ms IncrementalHoareTripleChecker+Time [2021-11-02 13:50:30,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [313 Valid, 0 Invalid, 371 Unknown, 0 Unchecked, 5.18ms Time], IncrementalHoareTripleChecker [2 Valid, 368 Invalid, 1 Unknown, 0 Unchecked, 3274.64ms Time] [2021-11-02 13:50:30,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2021-11-02 13:50:30,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2021-11-02 13:50:30,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 264 states have (on average 1.2992424242424243) internal successors, (343), 276 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 13:50:30,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 343 transitions. [2021-11-02 13:50:30,805 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 343 transitions. Word has length 56 [2021-11-02 13:50:30,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 13:50:30,808 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 343 transitions. [2021-11-02 13:50:30,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 13:50:30,808 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 343 transitions. [2021-11-02 13:50:30,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-02 13:50:30,809 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 13:50:30,809 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 13:50:30,831 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-02 13:50:31,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 13:50:31,012 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-02 13:50:31,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 13:50:31,012 INFO L85 PathProgramCache]: Analyzing trace with hash 967739910, now seen corresponding path program 1 times [2021-11-02 13:50:31,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 13:50:31,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355756489] [2021-11-02 13:50:31,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 13:50:31,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 13:50:31,091 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 13:50:31,093 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [651513740] [2021-11-02 13:50:31,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 13:50:31,094 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 13:50:31,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-02 13:50:31,095 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) [2021-11-02 13:50:31,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-02 13:50:31,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 13:50:31,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 2528 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-02 13:50:31,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 13:50:31,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 13:50:31,890 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-02 13:50:31,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 13:50:31,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355756489] [2021-11-02 13:50:31,890 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-02 13:50:31,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651513740] [2021-11-02 13:50:31,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [651513740] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 13:50:31,890 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 13:50:31,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 13:50:31,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734360536] [2021-11-02 13:50:31,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 13:50:31,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 13:50:31,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 13:50:31,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 13:50:31,891 INFO L87 Difference]: Start difference. First operand 277 states and 343 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 13:50:33,926 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 13:50:35,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 13:50:35,963 INFO L93 Difference]: Finished difference Result 611 states and 777 transitions. [2021-11-02 13:50:35,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 13:50:35,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-02 13:50:35,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 13:50:35,965 INFO L225 Difference]: With dead ends: 611 [2021-11-02 13:50:35,966 INFO L226 Difference]: Without dead ends: 442 [2021-11-02 13:50:35,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.40ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 13:50:35,967 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 196 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3663.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.07ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4008.27ms IncrementalHoareTripleChecker+Time [2021-11-02 13:50:35,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 0 Invalid, 696 Unknown, 0 Unchecked, 9.07ms Time], IncrementalHoareTripleChecker [18 Valid, 677 Invalid, 1 Unknown, 0 Unchecked, 4008.27ms Time] [2021-11-02 13:50:35,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2021-11-02 13:50:35,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 284. [2021-11-02 13:50:35,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 271 states have (on average 1.2915129151291513) internal successors, (350), 283 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 13:50:35,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 350 transitions. [2021-11-02 13:50:35,976 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 350 transitions. Word has length 58 [2021-11-02 13:50:35,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 13:50:35,976 INFO L470 AbstractCegarLoop]: Abstraction has 284 states and 350 transitions. [2021-11-02 13:50:35,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 13:50:35,977 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 350 transitions. [2021-11-02 13:50:35,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-02 13:50:35,978 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 13:50:35,978 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 13:50:35,999 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-02 13:50:36,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-02 13:50:36,199 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-02 13:50:36,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 13:50:36,200 INFO L85 PathProgramCache]: Analyzing trace with hash 969348624, now seen corresponding path program 1 times [2021-11-02 13:50:36,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 13:50:36,200 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770241087] [2021-11-02 13:50:36,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 13:50:36,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 13:50:36,250 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 13:50:36,266 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1902549718] [2021-11-02 13:50:36,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 13:50:36,267 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 13:50:36,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-02 13:50:36,268 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) [2021-11-02 13:50:36,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-02 13:50:36,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 13:50:36,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 2531 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-02 13:50:36,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 13:50:37,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 13:50:37,077 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-02 13:50:37,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 13:50:37,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770241087] [2021-11-02 13:50:37,078 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-02 13:50:37,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902549718] [2021-11-02 13:50:37,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902549718] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 13:50:37,078 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 13:50:37,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-02 13:50:37,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487457564] [2021-11-02 13:50:37,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 13:50:37,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 13:50:37,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 13:50:37,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 13:50:37,079 INFO L87 Difference]: Start difference. First operand 284 states and 350 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 13:50:39,118 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 13:50:44,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 13:50:44,695 INFO L93 Difference]: Finished difference Result 711 states and 887 transitions. [2021-11-02 13:50:44,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 13:50:44,696 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-02 13:50:44,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 13:50:44,705 INFO L225 Difference]: With dead ends: 711 [2021-11-02 13:50:44,705 INFO L226 Difference]: Without dead ends: 531 [2021-11-02 13:50:44,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 87.10ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-02 13:50:44,707 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 575 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 1689 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6893.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.56ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1689 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7449.23ms IncrementalHoareTripleChecker+Time [2021-11-02 13:50:44,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [575 Valid, 0 Invalid, 1704 Unknown, 0 Unchecked, 17.56ms Time], IncrementalHoareTripleChecker [14 Valid, 1689 Invalid, 1 Unknown, 0 Unchecked, 7449.23ms Time] [2021-11-02 13:50:44,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2021-11-02 13:50:44,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 287. [2021-11-02 13:50:44,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 274 states have (on average 1.2883211678832116) internal successors, (353), 286 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 13:50:44,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 353 transitions. [2021-11-02 13:50:44,727 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 353 transitions. Word has length 58 [2021-11-02 13:50:44,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 13:50:44,728 INFO L470 AbstractCegarLoop]: Abstraction has 287 states and 353 transitions. [2021-11-02 13:50:44,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 13:50:44,728 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 353 transitions. [2021-11-02 13:50:44,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-02 13:50:44,732 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 13:50:44,732 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 13:50:44,770 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-02 13:50:44,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 13:50:44,948 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-02 13:50:44,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 13:50:44,948 INFO L85 PathProgramCache]: Analyzing trace with hash -147950867, now seen corresponding path program 1 times [2021-11-02 13:50:44,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 13:50:44,948 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186743871] [2021-11-02 13:50:44,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 13:50:44,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 13:50:45,001 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 13:50:45,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [23043063] [2021-11-02 13:50:45,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 13:50:45,002 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 13:50:45,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-02 13:50:45,007 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) [2021-11-02 13:50:45,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-02 13:50:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 13:50:45,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 2524 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-02 13:50:45,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 13:50:45,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 13:50:45,832 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-02 13:50:45,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 13:50:45,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186743871] [2021-11-02 13:50:45,832 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-02 13:50:45,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23043063] [2021-11-02 13:50:45,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23043063] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 13:50:45,832 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 13:50:45,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-02 13:50:45,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568996291] [2021-11-02 13:50:45,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-02 13:50:45,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 13:50:45,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-02 13:50:45,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-02 13:50:45,833 INFO L87 Difference]: Start difference. First operand 287 states and 353 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 13:50:47,898 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 13:50:54,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 13:50:54,295 INFO L93 Difference]: Finished difference Result 563 states and 697 transitions. [2021-11-02 13:50:54,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-02 13:50:54,295 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-11-02 13:50:54,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 13:50:54,297 INFO L225 Difference]: With dead ends: 563 [2021-11-02 13:50:54,297 INFO L226 Difference]: Without dead ends: 561 [2021-11-02 13:50:54,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 295.39ms TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2021-11-02 13:50:54,299 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 648 mSDsluCounter, 1988 mSDsCounter, 0 mSdLazyCounter, 2692 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7720.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.36ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2692 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8166.35ms IncrementalHoareTripleChecker+Time [2021-11-02 13:50:54,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [648 Valid, 0 Invalid, 2707 Unknown, 0 Unchecked, 26.36ms Time], IncrementalHoareTripleChecker [14 Valid, 2692 Invalid, 1 Unknown, 0 Unchecked, 8166.35ms Time] [2021-11-02 13:50:54,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2021-11-02 13:50:54,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 289. [2021-11-02 13:50:54,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 276 states have (on average 1.286231884057971) internal successors, (355), 288 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 13:50:54,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 355 transitions. [2021-11-02 13:50:54,309 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 355 transitions. Word has length 59 [2021-11-02 13:50:54,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 13:50:54,309 INFO L470 AbstractCegarLoop]: Abstraction has 289 states and 355 transitions. [2021-11-02 13:50:54,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 13:50:54,310 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 355 transitions. [2021-11-02 13:50:54,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-02 13:50:54,312 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 13:50:54,312 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 13:50:54,336 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-02 13:50:54,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 13:50:54,515 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-02 13:50:54,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 13:50:54,516 INFO L85 PathProgramCache]: Analyzing trace with hash -147891285, now seen corresponding path program 1 times [2021-11-02 13:50:54,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 13:50:54,516 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589505888] [2021-11-02 13:50:54,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 13:50:54,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 13:50:54,581 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-02 13:50:54,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [654705689] [2021-11-02 13:50:54,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 13:50:54,582 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 13:50:54,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-02 13:50:54,583 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 13:50:54,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process Killed by 15