./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 c36dfa3b 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-c36dfa3 [2021-11-03 23:31:19,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 23:31:19,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 23:31:19,152 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 23:31:19,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 23:31:19,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 23:31:19,156 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 23:31:19,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 23:31:19,159 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 23:31:19,162 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 23:31:19,163 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 23:31:19,164 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 23:31:19,164 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 23:31:19,166 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 23:31:19,167 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 23:31:19,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 23:31:19,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 23:31:19,173 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 23:31:19,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 23:31:19,177 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 23:31:19,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 23:31:19,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 23:31:19,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 23:31:19,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 23:31:19,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 23:31:19,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 23:31:19,186 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 23:31:19,187 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 23:31:19,188 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 23:31:19,188 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 23:31:19,188 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 23:31:19,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 23:31:19,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 23:31:19,191 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 23:31:19,192 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 23:31:19,192 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 23:31:19,192 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 23:31:19,193 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 23:31:19,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 23:31:19,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 23:31:19,194 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 23:31:19,195 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-03 23:31:19,219 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 23:31:19,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 23:31:19,220 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-03 23:31:19,220 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-03 23:31:19,221 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 23:31:19,221 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 23:31:19,221 INFO L138 SettingsManager]: * Use SBE=true [2021-11-03 23:31:19,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 23:31:19,221 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 23:31:19,221 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 23:31:19,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 23:31:19,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 23:31:19,222 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 23:31:19,222 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 23:31:19,222 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 23:31:19,223 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 23:31:19,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 23:31:19,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 23:31:19,223 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 23:31:19,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 23:31:19,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 23:31:19,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 23:31:19,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 23:31:19,224 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-03 23:31:19,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 23:31:19,224 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-03 23:31:19,224 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-03 23:31:19,224 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 23:31:19,224 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 23:31:19,225 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4db5fb03820aea666082345ea177387bf1c218ce33dad19402cb646ed5abf58 [2021-11-03 23:31:19,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 23:31:19,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 23:31:19,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 23:31:19,503 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 23:31:19,504 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 23:31:19,505 INFO L432 ainManager$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 [2021-11-03 23:31:19,560 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/969d9f2a9/183ba587baf64d309dafea2efb684c8d/FLAGf6ebcddab [2021-11-03 23:31:20,171 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 23:31:20,172 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_dynamic_harness-1.i [2021-11-03 23:31:20,202 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/969d9f2a9/183ba587baf64d309dafea2efb684c8d/FLAGf6ebcddab [2021-11-03 23:31:20,576 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/969d9f2a9/183ba587baf64d309dafea2efb684c8d [2021-11-03 23:31:20,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 23:31:20,579 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 23:31:20,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 23:31:20,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 23:31:20,584 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 23:31:20,584 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 11:31:20" (1/1) ... [2021-11-03 23:31:20,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@400a127f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:31:20, skipping insertion in model container [2021-11-03 23:31:20,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 11:31:20" (1/1) ... [2021-11-03 23:31:20,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 23:31:20,684 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 23:31:20,847 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] [2021-11-03 23:31:20,851 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] [2021-11-03 23:31:20,860 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 23:31:20,862 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 23:31:21,243 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 23:31:21,295 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:31:21,301 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:31:21,302 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:31:21,307 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:31:21,308 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:31:21,315 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:31:21,315 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:31:21,316 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:31:21,316 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:31:21,491 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 23:31:21,493 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 23:31:21,493 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 23:31:21,494 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 23:31:21,497 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 23:31:21,498 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 23:31:21,499 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 23:31:21,501 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 23:31:21,501 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 23:31:21,505 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 23:31:21,608 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:31:21,608 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:31:21,651 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 23:31:21,679 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 23:31:21,698 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] [2021-11-03 23:31:21,700 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] [2021-11-03 23:31:21,701 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-03 23:31:21,702 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-03 23:31:21,731 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-03 23:31:21,739 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:31:21,739 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:31:21,740 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:31:21,740 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:31:21,740 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:31:21,744 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:31:21,744 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:31:21,745 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:31:21,746 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:31:21,767 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-03 23:31:21,768 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-03 23:31:21,768 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-03 23:31:21,769 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-03 23:31:21,769 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-03 23:31:21,770 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-03 23:31:21,771 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-03 23:31:21,771 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-03 23:31:21,771 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-03 23:31:21,772 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-03 23:31:21,794 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:31:21,794 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-03 23:31:21,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 23:31:21,939 INFO L208 MainTranslator]: Completed translation [2021-11-03 23:31:21,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:31:21 WrapperNode [2021-11-03 23:31:21,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 23:31:21,941 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 23:31:21,941 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 23:31:21,941 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 23:31:21,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:31:21" (1/1) ... [2021-11-03 23:31:22,003 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:31:21" (1/1) ... [2021-11-03 23:31:22,068 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 23:31:22,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 23:31:22,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 23:31:22,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 23:31:22,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:31:21" (1/1) ... [2021-11-03 23:31:22,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:31:21" (1/1) ... [2021-11-03 23:31:22,082 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:31:21" (1/1) ... [2021-11-03 23:31:22,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:31:21" (1/1) ... [2021-11-03 23:31:22,121 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:31:21" (1/1) ... [2021-11-03 23:31:22,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:31:21" (1/1) ... [2021-11-03 23:31:22,152 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:31:21" (1/1) ... [2021-11-03 23:31:22,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 23:31:22,163 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 23:31:22,163 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 23:31:22,164 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 23:31:22,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:31:21" (1/1) ... [2021-11-03 23:31:22,169 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 23:31:22,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 23:31:22,197 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) [2021-11-03 23:31:22,247 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 [2021-11-03 23:31:22,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 23:31:22,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 23:31:22,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 23:31:22,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 23:31:22,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 23:31:22,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 23:31:22,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 23:31:22,272 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-03 23:31:22,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 23:31:22,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 23:31:22,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 23:31:22,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 23:31:26,449 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 23:31:26,450 INFO L299 CfgBuilder]: Removed 215 assume(true) statements. [2021-11-03 23:31:26,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 11:31:26 BoogieIcfgContainer [2021-11-03 23:31:26,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 23:31:26,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 23:31:26,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 23:31:26,455 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 23:31:26,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 11:31:20" (1/3) ... [2021-11-03 23:31:26,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@776b4aa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 11:31:26, skipping insertion in model container [2021-11-03 23:31:26,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 11:31:21" (2/3) ... [2021-11-03 23:31:26,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@776b4aa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 11:31:26, skipping insertion in model container [2021-11-03 23:31:26,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 11:31:26" (3/3) ... [2021-11-03 23:31:26,457 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_dynamic_harness-1.i [2021-11-03 23:31:26,460 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 23:31:26,460 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-11-03 23:31:26,489 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 23:31:26,493 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 [2021-11-03 23:31:26,494 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-11-03 23:31:26,506 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) [2021-11-03 23:31:26,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-03 23:31:26,511 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:31:26,512 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] [2021-11-03 23:31:26,512 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)] === [2021-11-03 23:31:26,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:31:26,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1584459694, now seen corresponding path program 1 times [2021-11-03 23:31:26,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:31:26,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148388108] [2021-11-03 23:31:26,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:31:26,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:31:26,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:31:26,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:31:26,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:31:26,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148388108] [2021-11-03 23:31:26,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148388108] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:31:26,958 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:31:26,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 23:31:26,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229497975] [2021-11-03 23:31:26,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:31:26,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 23:31:26,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:31:26,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 23:31:26,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 23:31:26,989 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) [2021-11-03 23:31:29,421 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 23:31:30,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:31:30,925 INFO L93 Difference]: Finished difference Result 562 states and 781 transitions. [2021-11-03 23:31:30,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 23:31:30,927 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 [2021-11-03 23:31:30,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:31:30,933 INFO L225 Difference]: With dead ends: 562 [2021-11-03 23:31:30,934 INFO L226 Difference]: Without dead ends: 277 [2021-11-03 23:31:30,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 23:31:30,937 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3534.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.89ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3851.53ms IncrementalHoareTripleChecker+Time [2021-11-03 23:31:30,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 353 Unknown, 0 Unchecked, 4.89ms Time], IncrementalHoareTripleChecker [0 Valid, 352 Invalid, 1 Unknown, 0 Unchecked, 3851.53ms Time] [2021-11-03 23:31:30,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2021-11-03 23:31:30,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2021-11-03 23:31:30,979 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) [2021-11-03 23:31:30,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 345 transitions. [2021-11-03 23:31:30,982 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 345 transitions. Word has length 44 [2021-11-03 23:31:30,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:31:30,984 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 345 transitions. [2021-11-03 23:31:30,984 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) [2021-11-03 23:31:30,984 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 345 transitions. [2021-11-03 23:31:30,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-03 23:31:30,986 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:31:30,986 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] [2021-11-03 23:31:30,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 23:31:30,986 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)] === [2021-11-03 23:31:30,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:31:30,989 INFO L85 PathProgramCache]: Analyzing trace with hash -90645083, now seen corresponding path program 1 times [2021-11-03 23:31:30,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:31:30,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496552948] [2021-11-03 23:31:30,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:31:30,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:31:31,126 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 23:31:31,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [597728773] [2021-11-03 23:31:31,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:31:31,127 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 23:31:31,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 23:31:31,129 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) [2021-11-03 23:31:31,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-03 23:31:31,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:31:31,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 2514 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 23:31:31,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 23:31:32,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:31:32,068 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 23:31:32,069 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:31:32,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496552948] [2021-11-03 23:31:32,069 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 23:31:32,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597728773] [2021-11-03 23:31:32,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597728773] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:31:32,069 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:31:32,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 23:31:32,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76410100] [2021-11-03 23:31:32,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:31:32,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 23:31:32,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:31:32,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 23:31:32,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 23:31:32,071 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) [2021-11-03 23:31:34,109 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 [] [2021-11-03 23:31:35,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:31:35,507 INFO L93 Difference]: Finished difference Result 523 states and 656 transitions. [2021-11-03 23:31:35,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 23:31:35,508 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 [2021-11-03 23:31:35,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:31:35,509 INFO L225 Difference]: With dead ends: 523 [2021-11-03 23:31:35,509 INFO L226 Difference]: Without dead ends: 277 [2021-11-03 23:31:35,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.76ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 23:31:35,511 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 313 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3083.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.49ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3391.96ms IncrementalHoareTripleChecker+Time [2021-11-03 23:31:35,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [313 Valid, 0 Invalid, 371 Unknown, 0 Unchecked, 4.49ms Time], IncrementalHoareTripleChecker [2 Valid, 368 Invalid, 1 Unknown, 0 Unchecked, 3391.96ms Time] [2021-11-03 23:31:35,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2021-11-03 23:31:35,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2021-11-03 23:31:35,521 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) [2021-11-03 23:31:35,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 343 transitions. [2021-11-03 23:31:35,526 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 343 transitions. Word has length 56 [2021-11-03 23:31:35,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:31:35,526 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 343 transitions. [2021-11-03 23:31:35,526 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) [2021-11-03 23:31:35,526 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 343 transitions. [2021-11-03 23:31:35,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-03 23:31:35,529 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:31:35,529 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] [2021-11-03 23:31:35,551 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-03 23:31:35,743 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 [2021-11-03 23:31:35,744 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)] === [2021-11-03 23:31:35,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:31:35,746 INFO L85 PathProgramCache]: Analyzing trace with hash 967739910, now seen corresponding path program 1 times [2021-11-03 23:31:35,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:31:35,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298333644] [2021-11-03 23:31:35,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:31:35,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:31:35,820 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 23:31:35,821 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [624584335] [2021-11-03 23:31:35,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:31:35,821 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 23:31:35,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 23:31:35,823 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) [2021-11-03 23:31:35,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-03 23:31:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:31:36,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 2528 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 23:31:36,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 23:31:36,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:31:36,641 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 23:31:36,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:31:36,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298333644] [2021-11-03 23:31:36,641 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 23:31:36,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [624584335] [2021-11-03 23:31:36,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [624584335] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:31:36,642 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:31:36,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 23:31:36,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146131162] [2021-11-03 23:31:36,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:31:36,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 23:31:36,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:31:36,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 23:31:36,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 23:31:36,646 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) [2021-11-03 23:31:38,713 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 23:31:41,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:31:41,101 INFO L93 Difference]: Finished difference Result 611 states and 777 transitions. [2021-11-03 23:31:41,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 23:31:41,101 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 [2021-11-03 23:31:41,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:31:41,103 INFO L225 Difference]: With dead ends: 611 [2021-11-03 23:31:41,103 INFO L226 Difference]: Without dead ends: 442 [2021-11-03 23:31:41,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 43.70ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 23:31:41,104 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 196 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3938.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.01ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4384.39ms IncrementalHoareTripleChecker+Time [2021-11-03 23:31:41,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 0 Invalid, 696 Unknown, 0 Unchecked, 9.01ms Time], IncrementalHoareTripleChecker [18 Valid, 677 Invalid, 1 Unknown, 0 Unchecked, 4384.39ms Time] [2021-11-03 23:31:41,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2021-11-03 23:31:41,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 284. [2021-11-03 23:31:41,138 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) [2021-11-03 23:31:41,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 350 transitions. [2021-11-03 23:31:41,139 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 350 transitions. Word has length 58 [2021-11-03 23:31:41,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:31:41,140 INFO L470 AbstractCegarLoop]: Abstraction has 284 states and 350 transitions. [2021-11-03 23:31:41,140 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) [2021-11-03 23:31:41,140 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 350 transitions. [2021-11-03 23:31:41,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-03 23:31:41,143 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:31:41,143 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] [2021-11-03 23:31:41,166 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-03 23:31:41,349 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 [2021-11-03 23:31:41,350 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)] === [2021-11-03 23:31:41,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:31:41,350 INFO L85 PathProgramCache]: Analyzing trace with hash 969348624, now seen corresponding path program 1 times [2021-11-03 23:31:41,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:31:41,351 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41035521] [2021-11-03 23:31:41,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:31:41,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:31:41,421 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 23:31:41,422 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1367753565] [2021-11-03 23:31:41,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:31:41,423 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 23:31:41,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 23:31:41,424 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) [2021-11-03 23:31:41,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-03 23:31:42,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:31:42,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 2531 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 23:31:42,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 23:31:42,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:31:42,243 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 23:31:42,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:31:42,243 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41035521] [2021-11-03 23:31:42,244 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 23:31:42,244 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367753565] [2021-11-03 23:31:42,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367753565] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:31:42,244 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:31:42,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-03 23:31:42,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176964874] [2021-11-03 23:31:42,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:31:42,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 23:31:42,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:31:42,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 23:31:42,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 23:31:42,245 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) [2021-11-03 23:31:44,282 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 [] [2021-11-03 23:31:49,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:31:49,145 INFO L93 Difference]: Finished difference Result 711 states and 887 transitions. [2021-11-03 23:31:49,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 23:31:49,146 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 [2021-11-03 23:31:49,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:31:49,148 INFO L225 Difference]: With dead ends: 711 [2021-11-03 23:31:49,148 INFO L226 Difference]: Without dead ends: 531 [2021-11-03 23:31:49,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 109.73ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 23:31:49,149 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 575 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 1689 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6234.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.37ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1689 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6725.47ms IncrementalHoareTripleChecker+Time [2021-11-03 23:31:49,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [575 Valid, 0 Invalid, 1704 Unknown, 0 Unchecked, 21.37ms Time], IncrementalHoareTripleChecker [14 Valid, 1689 Invalid, 1 Unknown, 0 Unchecked, 6725.47ms Time] [2021-11-03 23:31:49,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2021-11-03 23:31:49,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 287. [2021-11-03 23:31:49,163 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) [2021-11-03 23:31:49,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 353 transitions. [2021-11-03 23:31:49,163 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 353 transitions. Word has length 58 [2021-11-03 23:31:49,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:31:49,164 INFO L470 AbstractCegarLoop]: Abstraction has 287 states and 353 transitions. [2021-11-03 23:31:49,164 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) [2021-11-03 23:31:49,164 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 353 transitions. [2021-11-03 23:31:49,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-03 23:31:49,165 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:31:49,165 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] [2021-11-03 23:31:49,188 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-03 23:31:49,375 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 [2021-11-03 23:31:49,375 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)] === [2021-11-03 23:31:49,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:31:49,376 INFO L85 PathProgramCache]: Analyzing trace with hash -147950867, now seen corresponding path program 1 times [2021-11-03 23:31:49,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:31:49,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485646803] [2021-11-03 23:31:49,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:31:49,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:31:49,480 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 23:31:49,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [891745059] [2021-11-03 23:31:49,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:31:49,481 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 23:31:49,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 23:31:49,482 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) [2021-11-03 23:31:49,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-03 23:31:50,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 23:31:50,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 2524 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-03 23:31:50,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 23:31:50,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 23:31:50,299 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 23:31:50,299 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 23:31:50,299 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485646803] [2021-11-03 23:31:50,299 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 23:31:50,299 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891745059] [2021-11-03 23:31:50,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [891745059] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 23:31:50,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 23:31:50,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-03 23:31:50,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597019023] [2021-11-03 23:31:50,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-03 23:31:50,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 23:31:50,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 23:31:50,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 23:31:50,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-03 23:31:50,300 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) [2021-11-03 23:31:52,337 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 [] [2021-11-03 23:31:58,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 23:31:58,883 INFO L93 Difference]: Finished difference Result 563 states and 697 transitions. [2021-11-03 23:31:58,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-03 23:31:58,884 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 [2021-11-03 23:31:58,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 23:31:58,886 INFO L225 Difference]: With dead ends: 563 [2021-11-03 23:31:58,886 INFO L226 Difference]: Without dead ends: 561 [2021-11-03 23:31:58,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 264.29ms TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2021-11-03 23:31:58,888 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 648 mSDsluCounter, 1988 mSDsCounter, 0 mSdLazyCounter, 2692 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7688.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.44ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2692 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8274.92ms IncrementalHoareTripleChecker+Time [2021-11-03 23:31:58,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [648 Valid, 0 Invalid, 2707 Unknown, 0 Unchecked, 28.44ms Time], IncrementalHoareTripleChecker [14 Valid, 2692 Invalid, 1 Unknown, 0 Unchecked, 8274.92ms Time] [2021-11-03 23:31:58,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2021-11-03 23:31:58,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 289. [2021-11-03 23:31:58,898 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) [2021-11-03 23:31:58,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 355 transitions. [2021-11-03 23:31:58,899 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 355 transitions. Word has length 59 [2021-11-03 23:31:58,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 23:31:58,907 INFO L470 AbstractCegarLoop]: Abstraction has 289 states and 355 transitions. [2021-11-03 23:31:58,908 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) [2021-11-03 23:31:58,908 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 355 transitions. [2021-11-03 23:31:58,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-03 23:31:58,909 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 23:31:58,909 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] [2021-11-03 23:31:58,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-03 23:31:59,109 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 [2021-11-03 23:31:59,110 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)] === [2021-11-03 23:31:59,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 23:31:59,110 INFO L85 PathProgramCache]: Analyzing trace with hash -147891285, now seen corresponding path program 1 times [2021-11-03 23:31:59,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 23:31:59,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745397667] [2021-11-03 23:31:59,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:31:59,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 23:31:59,169 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 23:31:59,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1324707195] [2021-11-03 23:31:59,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 23:31:59,170 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 23:31:59,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 23:31:59,171 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) [2021-11-03 23:31:59,172 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