./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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_pop_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 71774aeec0d0f8840a1b18b633767b26c38c9eb9d26569d28cdf01c44c9881ac --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 11:13:39,594 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 11:13:39,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 11:13:39,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 11:13:39,635 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 11:13:39,636 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 11:13:39,637 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 11:13:39,639 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 11:13:39,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 11:13:39,648 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 11:13:39,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 11:13:39,650 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 11:13:39,650 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 11:13:39,652 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 11:13:39,652 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 11:13:39,654 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 11:13:39,655 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 11:13:39,656 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 11:13:39,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 11:13:39,661 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 11:13:39,662 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 11:13:39,663 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 11:13:39,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 11:13:39,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 11:13:39,665 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 11:13:39,670 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 11:13:39,670 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 11:13:39,671 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 11:13:39,672 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 11:13:39,672 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 11:13:39,673 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 11:13:39,673 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 11:13:39,674 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 11:13:39,674 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 11:13:39,675 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 11:13:39,675 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 11:13:39,676 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 11:13:39,676 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 11:13:39,676 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 11:13:39,676 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 11:13:39,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 11:13:39,678 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 11:13:39,679 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 11:13:39,698 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 11:13:39,699 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 11:13:39,699 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 11:13:39,699 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 11:13:39,700 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 11:13:39,700 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 11:13:39,700 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 11:13:39,700 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 11:13:39,700 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 11:13:39,701 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 11:13:39,701 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 11:13:39,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 11:13:39,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 11:13:39,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 11:13:39,702 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 11:13:39,702 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 11:13:39,702 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 11:13:39,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 11:13:39,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 11:13:39,702 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 11:13:39,702 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 11:13:39,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 11:13:39,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 11:13:39,704 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 11:13:39,704 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 11:13:39,704 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 11:13:39,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 11:13:39,704 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 11:13:39,704 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 11:13:39,704 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 11:13:39,705 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71774aeec0d0f8840a1b18b633767b26c38c9eb9d26569d28cdf01c44c9881ac [2022-07-12 11:13:39,847 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 11:13:39,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 11:13:39,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 11:13:39,865 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 11:13:39,865 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 11:13:39,866 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i [2022-07-12 11:13:39,914 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a02f4e088/f0c50c401a5548a79bd35a8ae6755797/FLAG4f7bdc4e2 [2022-07-12 11:13:40,430 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 11:13:40,430 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i [2022-07-12 11:13:40,453 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a02f4e088/f0c50c401a5548a79bd35a8ae6755797/FLAG4f7bdc4e2 [2022-07-12 11:13:40,938 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a02f4e088/f0c50c401a5548a79bd35a8ae6755797 [2022-07-12 11:13:40,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 11:13:40,941 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 11:13:40,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 11:13:40,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 11:13:40,947 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 11:13:40,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 11:13:40" (1/1) ... [2022-07-12 11:13:40,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5793694f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:13:40, skipping insertion in model container [2022-07-12 11:13:40,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 11:13:40" (1/1) ... [2022-07-12 11:13:40,953 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 11:13:41,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 11:13:41,221 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4496,4509] [2022-07-12 11:13:41,226 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4556,4569] [2022-07-12 11:13:41,688 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:41,688 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:41,689 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:41,689 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:41,690 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:41,697 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:41,700 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:41,703 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:41,705 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:41,707 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:41,708 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:41,709 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:41,710 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:41,877 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-12 11:13:41,878 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-12 11:13:41,879 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-12 11:13:41,879 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-12 11:13:41,880 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-12 11:13:41,880 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-12 11:13:41,881 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-12 11:13:41,881 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-12 11:13:41,882 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-12 11:13:41,882 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-12 11:13:41,956 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-12 11:13:41,970 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:41,973 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,083 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,084 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,085 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,085 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,085 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,085 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,087 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,088 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,088 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,088 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,089 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,089 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,089 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,092 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,093 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,094 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,094 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,100 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,101 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,108 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,109 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,110 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 11:13:42,161 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 11:13:42,179 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4496,4509] [2022-07-12 11:13:42,181 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i[4556,4569] [2022-07-12 11:13:42,215 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,220 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,220 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,221 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,221 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,226 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,227 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,227 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,228 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,228 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,229 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,229 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,229 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,250 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-12 11:13:42,251 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-12 11:13:42,251 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-12 11:13:42,252 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-12 11:13:42,252 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-12 11:13:42,253 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-12 11:13:42,253 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-12 11:13:42,253 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-12 11:13:42,253 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-12 11:13:42,254 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-12 11:13:42,269 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-12 11:13:42,277 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,279 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,294 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,294 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,295 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,295 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,295 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,295 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,296 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,296 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,296 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,297 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,297 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,297 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,297 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,298 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,298 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,299 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,299 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,300 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,301 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,304 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,305 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,305 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-12 11:13:42,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 11:13:42,480 INFO L208 MainTranslator]: Completed translation [2022-07-12 11:13:42,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:13:42 WrapperNode [2022-07-12 11:13:42,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 11:13:42,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 11:13:42,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 11:13:42,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 11:13:42,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:13:42" (1/1) ... [2022-07-12 11:13:42,567 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:13:42" (1/1) ... [2022-07-12 11:13:42,628 INFO L137 Inliner]: procedures = 697, calls = 1918, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 1033 [2022-07-12 11:13:42,629 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 11:13:42,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 11:13:42,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 11:13:42,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 11:13:42,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:13:42" (1/1) ... [2022-07-12 11:13:42,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:13:42" (1/1) ... [2022-07-12 11:13:42,645 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:13:42" (1/1) ... [2022-07-12 11:13:42,646 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:13:42" (1/1) ... [2022-07-12 11:13:42,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:13:42" (1/1) ... [2022-07-12 11:13:42,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:13:42" (1/1) ... [2022-07-12 11:13:42,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:13:42" (1/1) ... [2022-07-12 11:13:42,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 11:13:42,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 11:13:42,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 11:13:42,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 11:13:42,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:13:42" (1/1) ... [2022-07-12 11:13:42,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 11:13:42,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:13:42,783 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 11:13:42,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 11:13:42,810 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-07-12 11:13:42,810 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-07-12 11:13:42,810 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-07-12 11:13:42,810 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-07-12 11:13:42,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 11:13:42,811 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-07-12 11:13:42,811 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-07-12 11:13:42,811 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-07-12 11:13:42,811 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-07-12 11:13:42,811 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-07-12 11:13:42,811 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-07-12 11:13:42,811 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-07-12 11:13:42,811 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-07-12 11:13:42,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-12 11:13:42,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 11:13:42,812 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-07-12 11:13:42,812 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-07-12 11:13:42,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-12 11:13:42,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-12 11:13:42,813 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_node [2022-07-12 11:13:42,813 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_node [2022-07-12 11:13:42,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 11:13:42,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 11:13:42,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 11:13:42,815 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-07-12 11:13:42,816 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-07-12 11:13:42,816 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-07-12 11:13:42,816 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-07-12 11:13:42,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 11:13:42,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 11:13:42,820 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-07-12 11:13:42,820 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-07-12 11:13:42,820 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-07-12 11:13:42,821 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-07-12 11:13:42,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 11:13:42,821 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-07-12 11:13:42,821 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-07-12 11:13:42,821 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-07-12 11:13:42,821 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-07-12 11:13:42,821 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-07-12 11:13:42,821 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-07-12 11:13:42,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 11:13:42,821 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 11:13:42,822 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 11:13:42,822 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 11:13:42,822 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-07-12 11:13:42,822 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-07-12 11:13:42,822 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2022-07-12 11:13:42,822 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2022-07-12 11:13:42,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 11:13:42,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 11:13:42,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 11:13:42,822 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-07-12 11:13:42,823 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-07-12 11:13:42,823 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-07-12 11:13:42,823 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-07-12 11:13:42,823 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-07-12 11:13:42,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-07-12 11:13:42,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 11:13:42,823 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-07-12 11:13:42,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-07-12 11:13:42,823 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-07-12 11:13:42,823 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-07-12 11:13:42,824 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-12 11:13:42,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-12 11:13:42,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 11:13:42,824 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at [2022-07-12 11:13:42,824 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at [2022-07-12 11:13:43,117 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 11:13:43,119 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 11:13:44,483 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 11:13:44,501 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 11:13:44,501 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-07-12 11:13:44,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 11:13:44 BoogieIcfgContainer [2022-07-12 11:13:44,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 11:13:44,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 11:13:44,506 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 11:13:44,508 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 11:13:44,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 11:13:40" (1/3) ... [2022-07-12 11:13:44,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b87302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 11:13:44, skipping insertion in model container [2022-07-12 11:13:44,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 11:13:42" (2/3) ... [2022-07-12 11:13:44,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b87302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 11:13:44, skipping insertion in model container [2022-07-12 11:13:44,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 11:13:44" (3/3) ... [2022-07-12 11:13:44,510 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_pop_harness.i [2022-07-12 11:13:44,523 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 11:13:44,524 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-12 11:13:44,577 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 11:13:44,584 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@40d7c4f1, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6d0e6f4e [2022-07-12 11:13:44,584 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-12 11:13:44,589 INFO L276 IsEmpty]: Start isEmpty. Operand has 448 states, 263 states have (on average 1.2623574144486691) internal successors, (332), 266 states have internal predecessors, (332), 156 states have call successors, (156), 27 states have call predecessors, (156), 27 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2022-07-12 11:13:44,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-07-12 11:13:44,622 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:13:44,623 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:13:44,624 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:13:44,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:13:44,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1140837343, now seen corresponding path program 1 times [2022-07-12 11:13:44,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:13:44,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828506905] [2022-07-12 11:13:44,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:13:44,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:13:44,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:45,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:13:45,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:45,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 11:13:45,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:45,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 11:13:45,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:45,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 11:13:45,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:45,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:13:45,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:45,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 11:13:45,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:45,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 11:13:45,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:45,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:13:45,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:45,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 11:13:45,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:45,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 11:13:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:45,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 11:13:45,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:45,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 11:13:45,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:45,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:13:45,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:45,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 11:13:45,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:45,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 11:13:45,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:45,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 11:13:45,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:45,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 11:13:45,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:45,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 11:13:45,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:45,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 11:13:45,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:45,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 11:13:45,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:45,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 11:13:45,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:45,304 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2022-07-12 11:13:45,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:13:45,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828506905] [2022-07-12 11:13:45,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828506905] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:13:45,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:13:45,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 11:13:45,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854825273] [2022-07-12 11:13:45,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:13:45,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 11:13:45,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:13:45,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 11:13:45,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-07-12 11:13:45,328 INFO L87 Difference]: Start difference. First operand has 448 states, 263 states have (on average 1.2623574144486691) internal successors, (332), 266 states have internal predecessors, (332), 156 states have call successors, (156), 27 states have call predecessors, (156), 27 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-12 11:13:46,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:13:46,565 INFO L93 Difference]: Finished difference Result 1063 states and 1806 transitions. [2022-07-12 11:13:46,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 11:13:46,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 133 [2022-07-12 11:13:46,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:13:46,589 INFO L225 Difference]: With dead ends: 1063 [2022-07-12 11:13:46,589 INFO L226 Difference]: Without dead ends: 621 [2022-07-12 11:13:46,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-07-12 11:13:46,599 INFO L413 NwaCegarLoop]: 688 mSDtfsCounter, 465 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 765 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 765 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-12 11:13:46,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 958 Invalid, 1122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [765 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-12 11:13:46,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2022-07-12 11:13:46,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 441. [2022-07-12 11:13:46,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 257 states have (on average 1.2373540856031129) internal successors, (318), 260 states have internal predecessors, (318), 156 states have call successors, (156), 27 states have call predecessors, (156), 26 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2022-07-12 11:13:46,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 628 transitions. [2022-07-12 11:13:46,666 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 628 transitions. Word has length 133 [2022-07-12 11:13:46,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:13:46,667 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 628 transitions. [2022-07-12 11:13:46,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-12 11:13:46,667 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 628 transitions. [2022-07-12 11:13:46,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-07-12 11:13:46,669 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:13:46,669 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:13:46,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 11:13:46,670 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:13:46,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:13:46,670 INFO L85 PathProgramCache]: Analyzing trace with hash 826891299, now seen corresponding path program 1 times [2022-07-12 11:13:46,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:13:46,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781540500] [2022-07-12 11:13:46,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:13:46,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:13:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:46,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:13:46,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:46,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 11:13:46,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:46,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 11:13:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:46,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 11:13:46,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:46,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:13:46,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:46,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 11:13:46,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:46,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 11:13:46,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:46,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:13:46,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:46,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 11:13:46,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:46,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 11:13:46,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:46,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 11:13:46,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:46,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 11:13:46,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:46,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:13:46,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:46,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 11:13:46,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:46,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 11:13:46,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:46,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 11:13:46,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:46,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 11:13:46,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:46,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 11:13:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:46,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 11:13:46,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:46,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 11:13:46,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:46,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 11:13:46,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:46,990 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-07-12 11:13:46,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:13:46,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781540500] [2022-07-12 11:13:46,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781540500] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 11:13:46,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076652965] [2022-07-12 11:13:46,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:13:46,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:13:46,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:13:46,993 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:13:46,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 11:13:47,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:47,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 2444 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 11:13:47,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:13:47,516 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-07-12 11:13:47,517 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:13:47,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076652965] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:13:47,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 11:13:47,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-07-12 11:13:47,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766611101] [2022-07-12 11:13:47,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:13:47,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 11:13:47,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:13:47,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 11:13:47,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-12 11:13:47,522 INFO L87 Difference]: Start difference. First operand 441 states and 628 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-12 11:13:48,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:13:48,895 INFO L93 Difference]: Finished difference Result 848 states and 1225 transitions. [2022-07-12 11:13:48,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 11:13:48,896 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 133 [2022-07-12 11:13:48,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:13:48,899 INFO L225 Difference]: With dead ends: 848 [2022-07-12 11:13:48,899 INFO L226 Difference]: Without dead ends: 443 [2022-07-12 11:13:48,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-07-12 11:13:48,902 INFO L413 NwaCegarLoop]: 568 mSDtfsCounter, 643 mSDsluCounter, 1621 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 2189 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-12 11:13:48,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 2189 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-12 11:13:48,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-07-12 11:13:48,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2022-07-12 11:13:48,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 258 states have (on average 1.2364341085271318) internal successors, (319), 262 states have internal predecessors, (319), 156 states have call successors, (156), 27 states have call predecessors, (156), 27 states have return successors, (167), 154 states have call predecessors, (167), 154 states have call successors, (167) [2022-07-12 11:13:48,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 642 transitions. [2022-07-12 11:13:48,925 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 642 transitions. Word has length 133 [2022-07-12 11:13:48,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:13:48,925 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 642 transitions. [2022-07-12 11:13:48,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-12 11:13:48,926 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 642 transitions. [2022-07-12 11:13:48,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-07-12 11:13:48,927 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:13:48,927 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:13:48,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-12 11:13:49,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:13:49,142 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:13:49,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:13:49,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1886231881, now seen corresponding path program 1 times [2022-07-12 11:13:49,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:13:49,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092969837] [2022-07-12 11:13:49,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:13:49,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:13:49,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:49,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:13:49,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:49,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 11:13:49,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:49,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 11:13:49,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:49,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 11:13:49,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:49,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:13:49,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:49,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 11:13:49,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:49,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 11:13:49,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:49,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 11:13:49,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:49,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 11:13:49,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:49,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 11:13:49,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:49,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 11:13:49,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:49,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 11:13:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:49,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 11:13:49,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:49,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 11:13:49,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:49,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 11:13:49,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:49,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-12 11:13:49,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:49,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 11:13:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:49,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 11:13:49,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:49,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 11:13:49,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:49,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 11:13:49,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:49,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-12 11:13:49,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:49,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-12 11:13:49,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:49,447 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2022-07-12 11:13:49,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:13:49,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092969837] [2022-07-12 11:13:49,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092969837] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 11:13:49,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713309808] [2022-07-12 11:13:49,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:13:49,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:13:49,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:13:49,449 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:13:49,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-12 11:13:49,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:49,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 2494 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 11:13:49,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:13:49,935 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-07-12 11:13:49,935 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:13:49,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713309808] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:13:49,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 11:13:49,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2022-07-12 11:13:49,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63362482] [2022-07-12 11:13:49,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:13:49,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 11:13:49,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:13:49,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 11:13:49,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2022-07-12 11:13:49,936 INFO L87 Difference]: Start difference. First operand 443 states and 642 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-07-12 11:13:52,004 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:13:53,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:13:53,088 INFO L93 Difference]: Finished difference Result 871 states and 1296 transitions. [2022-07-12 11:13:53,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 11:13:53,089 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 141 [2022-07-12 11:13:53,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:13:53,095 INFO L225 Difference]: With dead ends: 871 [2022-07-12 11:13:53,095 INFO L226 Difference]: Without dead ends: 464 [2022-07-12 11:13:53,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-07-12 11:13:53,100 INFO L413 NwaCegarLoop]: 565 mSDtfsCounter, 667 mSDsluCounter, 2664 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 3229 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-12 11:13:53,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [717 Valid, 3229 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-12 11:13:53,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-07-12 11:13:53,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 462. [2022-07-12 11:13:53,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 274 states have (on average 1.2445255474452555) internal successors, (341), 278 states have internal predecessors, (341), 158 states have call successors, (158), 27 states have call predecessors, (158), 28 states have return successors, (186), 157 states have call predecessors, (186), 156 states have call successors, (186) [2022-07-12 11:13:53,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 685 transitions. [2022-07-12 11:13:53,163 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 685 transitions. Word has length 141 [2022-07-12 11:13:53,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:13:53,164 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 685 transitions. [2022-07-12 11:13:53,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-07-12 11:13:53,165 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 685 transitions. [2022-07-12 11:13:53,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-12 11:13:53,170 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:13:53,170 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:13:53,189 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-12 11:13:53,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-07-12 11:13:53,389 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:13:53,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:13:53,390 INFO L85 PathProgramCache]: Analyzing trace with hash -523305437, now seen corresponding path program 1 times [2022-07-12 11:13:53,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:13:53,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722960249] [2022-07-12 11:13:53,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:13:53,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:13:53,453 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:13:53,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [464460172] [2022-07-12 11:13:53,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:13:53,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:13:53,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:13:53,455 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:13:53,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-12 11:13:53,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:53,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 2635 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 11:13:53,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:13:53,918 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-07-12 11:13:53,918 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:13:53,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:13:53,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722960249] [2022-07-12 11:13:53,919 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:13:53,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464460172] [2022-07-12 11:13:53,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464460172] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:13:53,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:13:53,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 11:13:53,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945870568] [2022-07-12 11:13:53,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:13:53,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 11:13:53,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:13:53,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 11:13:53,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 11:13:53,920 INFO L87 Difference]: Start difference. First operand 462 states and 685 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2022-07-12 11:13:55,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:13:55,950 INFO L93 Difference]: Finished difference Result 896 states and 1369 transitions. [2022-07-12 11:13:55,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 11:13:55,950 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 156 [2022-07-12 11:13:55,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:13:55,953 INFO L225 Difference]: With dead ends: 896 [2022-07-12 11:13:55,953 INFO L226 Difference]: Without dead ends: 470 [2022-07-12 11:13:55,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-07-12 11:13:55,956 INFO L413 NwaCegarLoop]: 562 mSDtfsCounter, 667 mSDsluCounter, 2131 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 2693 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-12 11:13:55,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 2693 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-12 11:13:55,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2022-07-12 11:13:55,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 462. [2022-07-12 11:13:55,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 274 states have (on average 1.2445255474452555) internal successors, (341), 278 states have internal predecessors, (341), 158 states have call successors, (158), 27 states have call predecessors, (158), 28 states have return successors, (186), 157 states have call predecessors, (186), 156 states have call successors, (186) [2022-07-12 11:13:55,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 685 transitions. [2022-07-12 11:13:55,973 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 685 transitions. Word has length 156 [2022-07-12 11:13:55,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:13:55,973 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 685 transitions. [2022-07-12 11:13:55,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2022-07-12 11:13:55,973 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 685 transitions. [2022-07-12 11:13:55,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-07-12 11:13:55,975 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:13:55,975 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:13:55,996 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-12 11:13:56,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:13:56,195 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:13:56,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:13:56,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1664024204, now seen corresponding path program 1 times [2022-07-12 11:13:56,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:13:56,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426484059] [2022-07-12 11:13:56,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:13:56,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:13:56,256 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:13:56,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2069127918] [2022-07-12 11:13:56,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:13:56,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:13:56,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:13:56,258 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:13:56,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-12 11:13:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:13:56,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 2707 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 11:13:56,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:13:56,770 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-07-12 11:13:56,770 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:13:56,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:13:56,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426484059] [2022-07-12 11:13:56,771 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:13:56,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069127918] [2022-07-12 11:13:56,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069127918] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:13:56,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:13:56,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 11:13:56,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256947267] [2022-07-12 11:13:56,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:13:56,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 11:13:56,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:13:56,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 11:13:56,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 11:13:56,772 INFO L87 Difference]: Start difference. First operand 462 states and 685 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2022-07-12 11:13:59,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:13:59,624 INFO L93 Difference]: Finished difference Result 906 states and 1373 transitions. [2022-07-12 11:13:59,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 11:13:59,625 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) Word has length 172 [2022-07-12 11:13:59,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:13:59,628 INFO L225 Difference]: With dead ends: 906 [2022-07-12 11:13:59,628 INFO L226 Difference]: Without dead ends: 480 [2022-07-12 11:13:59,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-07-12 11:13:59,630 INFO L413 NwaCegarLoop]: 541 mSDtfsCounter, 732 mSDsluCounter, 3083 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 3624 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-12 11:13:59,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [782 Valid, 3624 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-12 11:13:59,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-07-12 11:13:59,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 462. [2022-07-12 11:13:59,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 274 states have (on average 1.2445255474452555) internal successors, (341), 278 states have internal predecessors, (341), 158 states have call successors, (158), 27 states have call predecessors, (158), 28 states have return successors, (186), 157 states have call predecessors, (186), 156 states have call successors, (186) [2022-07-12 11:13:59,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 685 transitions. [2022-07-12 11:13:59,646 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 685 transitions. Word has length 172 [2022-07-12 11:13:59,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:13:59,646 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 685 transitions. [2022-07-12 11:13:59,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2022-07-12 11:13:59,646 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 685 transitions. [2022-07-12 11:13:59,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-12 11:13:59,648 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:13:59,648 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:13:59,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-12 11:13:59,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:13:59,863 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:13:59,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:13:59,864 INFO L85 PathProgramCache]: Analyzing trace with hash -294824304, now seen corresponding path program 2 times [2022-07-12 11:13:59,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:13:59,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011682098] [2022-07-12 11:13:59,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:13:59,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:13:59,916 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:13:59,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1613605230] [2022-07-12 11:13:59,916 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 11:13:59,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:13:59,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:13:59,918 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:13:59,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-12 11:14:00,441 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-12 11:14:00,441 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 11:14:00,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 2848 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 11:14:00,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:14:00,509 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-07-12 11:14:00,509 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:14:00,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:14:00,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011682098] [2022-07-12 11:14:00,509 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:14:00,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613605230] [2022-07-12 11:14:00,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613605230] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:14:00,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:14:00,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 11:14:00,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616375924] [2022-07-12 11:14:00,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:14:00,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 11:14:00,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:14:00,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 11:14:00,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 11:14:00,511 INFO L87 Difference]: Start difference. First operand 462 states and 685 transitions. Second operand has 7 states, 6 states have (on average 13.833333333333334) internal successors, (83), 7 states have internal predecessors, (83), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2022-07-12 11:14:02,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:14:02,287 INFO L93 Difference]: Finished difference Result 858 states and 1293 transitions. [2022-07-12 11:14:02,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 11:14:02,287 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.833333333333334) internal successors, (83), 7 states have internal predecessors, (83), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 187 [2022-07-12 11:14:02,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:14:02,290 INFO L225 Difference]: With dead ends: 858 [2022-07-12 11:14:02,290 INFO L226 Difference]: Without dead ends: 464 [2022-07-12 11:14:02,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-07-12 11:14:02,293 INFO L413 NwaCegarLoop]: 567 mSDtfsCounter, 655 mSDsluCounter, 2158 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 2725 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-12 11:14:02,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [677 Valid, 2725 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-12 11:14:02,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-07-12 11:14:02,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2022-07-12 11:14:02,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 275 states have (on average 1.2436363636363637) internal successors, (342), 280 states have internal predecessors, (342), 158 states have call successors, (158), 27 states have call predecessors, (158), 29 states have return successors, (197), 157 states have call predecessors, (197), 156 states have call successors, (197) [2022-07-12 11:14:02,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 697 transitions. [2022-07-12 11:14:02,308 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 697 transitions. Word has length 187 [2022-07-12 11:14:02,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:14:02,308 INFO L495 AbstractCegarLoop]: Abstraction has 464 states and 697 transitions. [2022-07-12 11:14:02,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.833333333333334) internal successors, (83), 7 states have internal predecessors, (83), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2022-07-12 11:14:02,308 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 697 transitions. [2022-07-12 11:14:02,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-07-12 11:14:02,310 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:14:02,310 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:14:02,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-12 11:14:02,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:14:02,531 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:14:02,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:14:02,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1770519646, now seen corresponding path program 1 times [2022-07-12 11:14:02,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:14:02,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469200829] [2022-07-12 11:14:02,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:02,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:14:02,588 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:14:02,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [7538394] [2022-07-12 11:14:02,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:02,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:14:02,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:14:02,590 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:14:02,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-12 11:14:03,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:03,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 3039 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 11:14:03,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:14:03,138 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2022-07-12 11:14:03,138 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:14:03,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:14:03,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469200829] [2022-07-12 11:14:03,138 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:14:03,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7538394] [2022-07-12 11:14:03,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [7538394] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:14:03,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:14:03,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 11:14:03,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89424864] [2022-07-12 11:14:03,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:14:03,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 11:14:03,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:14:03,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 11:14:03,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 11:14:03,140 INFO L87 Difference]: Start difference. First operand 464 states and 697 transitions. Second operand has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 8 states have internal predecessors, (86), 5 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) [2022-07-12 11:14:05,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:14:05,203 INFO L93 Difference]: Finished difference Result 863 states and 1318 transitions. [2022-07-12 11:14:05,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 11:14:05,203 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 8 states have internal predecessors, (86), 5 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) Word has length 210 [2022-07-12 11:14:05,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:14:05,206 INFO L225 Difference]: With dead ends: 863 [2022-07-12 11:14:05,206 INFO L226 Difference]: Without dead ends: 467 [2022-07-12 11:14:05,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-07-12 11:14:05,208 INFO L413 NwaCegarLoop]: 561 mSDtfsCounter, 679 mSDsluCounter, 2657 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 3218 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-12 11:14:05,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [701 Valid, 3218 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-12 11:14:05,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-07-12 11:14:05,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 465. [2022-07-12 11:14:05,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 276 states have (on average 1.2427536231884058) internal successors, (343), 281 states have internal predecessors, (343), 158 states have call successors, (158), 27 states have call predecessors, (158), 29 states have return successors, (197), 157 states have call predecessors, (197), 156 states have call successors, (197) [2022-07-12 11:14:05,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 698 transitions. [2022-07-12 11:14:05,223 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 698 transitions. Word has length 210 [2022-07-12 11:14:05,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:14:05,224 INFO L495 AbstractCegarLoop]: Abstraction has 465 states and 698 transitions. [2022-07-12 11:14:05,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 8 states have internal predecessors, (86), 5 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) [2022-07-12 11:14:05,224 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 698 transitions. [2022-07-12 11:14:05,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-07-12 11:14:05,225 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:14:05,225 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:14:05,249 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-12 11:14:05,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:14:05,434 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:14:05,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:14:05,435 INFO L85 PathProgramCache]: Analyzing trace with hash -236319775, now seen corresponding path program 1 times [2022-07-12 11:14:05,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:14:05,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206035481] [2022-07-12 11:14:05,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:05,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:14:05,495 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:14:05,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1305019358] [2022-07-12 11:14:05,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:05,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:14:05,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:14:05,497 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:14:05,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-12 11:14:05,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:05,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 2970 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 11:14:05,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:14:06,071 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 137 proven. 3 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-07-12 11:14:06,072 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 11:14:06,303 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2022-07-12 11:14:06,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:14:06,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206035481] [2022-07-12 11:14:06,303 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:14:06,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305019358] [2022-07-12 11:14:06,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305019358] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 11:14:06,304 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 11:14:06,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2022-07-12 11:14:06,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642240029] [2022-07-12 11:14:06,304 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 11:14:06,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-12 11:14:06,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:14:06,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-12 11:14:06,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-12 11:14:06,305 INFO L87 Difference]: Start difference. First operand 465 states and 698 transitions. Second operand has 14 states, 12 states have (on average 9.916666666666666) internal successors, (119), 14 states have internal predecessors, (119), 9 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (42), 5 states have call predecessors, (42), 9 states have call successors, (42) [2022-07-12 11:14:08,525 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:14:08,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:14:08,896 INFO L93 Difference]: Finished difference Result 984 states and 1480 transitions. [2022-07-12 11:14:08,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 11:14:08,897 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 9.916666666666666) internal successors, (119), 14 states have internal predecessors, (119), 9 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (42), 5 states have call predecessors, (42), 9 states have call successors, (42) Word has length 211 [2022-07-12 11:14:08,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:14:08,902 INFO L225 Difference]: With dead ends: 984 [2022-07-12 11:14:08,903 INFO L226 Difference]: Without dead ends: 544 [2022-07-12 11:14:08,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2022-07-12 11:14:08,906 INFO L413 NwaCegarLoop]: 565 mSDtfsCounter, 507 mSDsluCounter, 4752 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 143 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 5317 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-12 11:14:08,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 5317 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 768 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-07-12 11:14:08,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2022-07-12 11:14:08,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 538. [2022-07-12 11:14:08,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 335 states have (on average 1.2477611940298508) internal successors, (418), 339 states have internal predecessors, (418), 165 states have call successors, (165), 34 states have call predecessors, (165), 36 states have return successors, (204), 165 states have call predecessors, (204), 163 states have call successors, (204) [2022-07-12 11:14:08,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 787 transitions. [2022-07-12 11:14:08,927 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 787 transitions. Word has length 211 [2022-07-12 11:14:08,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:14:08,927 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 787 transitions. [2022-07-12 11:14:08,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 9.916666666666666) internal successors, (119), 14 states have internal predecessors, (119), 9 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (42), 5 states have call predecessors, (42), 9 states have call successors, (42) [2022-07-12 11:14:08,928 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 787 transitions. [2022-07-12 11:14:08,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-07-12 11:14:08,929 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:14:08,929 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:14:08,952 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-12 11:14:09,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:14:09,143 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:14:09,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:14:09,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1051846891, now seen corresponding path program 2 times [2022-07-12 11:14:09,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:14:09,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379216704] [2022-07-12 11:14:09,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:09,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:14:09,198 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:14:09,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1642089592] [2022-07-12 11:14:09,198 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 11:14:09,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:14:09,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:14:09,200 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:14:09,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-12 11:14:10,006 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-12 11:14:10,007 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 11:14:10,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 3111 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-12 11:14:10,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:14:10,121 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-07-12 11:14:10,121 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:14:10,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:14:10,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379216704] [2022-07-12 11:14:10,122 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:14:10,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642089592] [2022-07-12 11:14:10,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1642089592] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:14:10,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:14:10,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 11:14:10,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999030814] [2022-07-12 11:14:10,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:14:10,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 11:14:10,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:14:10,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 11:14:10,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-12 11:14:10,125 INFO L87 Difference]: Start difference. First operand 538 states and 787 transitions. Second operand has 10 states, 9 states have (on average 11.11111111111111) internal successors, (100), 10 states have internal predecessors, (100), 6 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2022-07-12 11:14:13,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:14:13,740 INFO L93 Difference]: Finished difference Result 950 states and 1425 transitions. [2022-07-12 11:14:13,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 11:14:13,740 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.11111111111111) internal successors, (100), 10 states have internal predecessors, (100), 6 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) Word has length 226 [2022-07-12 11:14:13,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:14:13,743 INFO L225 Difference]: With dead ends: 950 [2022-07-12 11:14:13,744 INFO L226 Difference]: Without dead ends: 540 [2022-07-12 11:14:13,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-07-12 11:14:13,748 INFO L413 NwaCegarLoop]: 557 mSDtfsCounter, 683 mSDsluCounter, 3639 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 4196 SdHoareTripleChecker+Invalid, 987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-07-12 11:14:13,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 4196 Invalid, 987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 911 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-07-12 11:14:13,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2022-07-12 11:14:13,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 522. [2022-07-12 11:14:13,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 321 states have (on average 1.2429906542056075) internal successors, (399), 325 states have internal predecessors, (399), 164 states have call successors, (164), 34 states have call predecessors, (164), 35 states have return successors, (190), 163 states have call predecessors, (190), 162 states have call successors, (190) [2022-07-12 11:14:13,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 753 transitions. [2022-07-12 11:14:13,767 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 753 transitions. Word has length 226 [2022-07-12 11:14:13,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:14:13,769 INFO L495 AbstractCegarLoop]: Abstraction has 522 states and 753 transitions. [2022-07-12 11:14:13,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.11111111111111) internal successors, (100), 10 states have internal predecessors, (100), 6 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2022-07-12 11:14:13,769 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 753 transitions. [2022-07-12 11:14:13,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-07-12 11:14:13,772 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:14:13,772 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:14:13,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-12 11:14:13,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-07-12 11:14:13,997 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:14:13,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:14:13,997 INFO L85 PathProgramCache]: Analyzing trace with hash 664794371, now seen corresponding path program 3 times [2022-07-12 11:14:13,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:14:13,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554533558] [2022-07-12 11:14:13,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:13,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:14:14,049 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:14:14,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1987170667] [2022-07-12 11:14:14,050 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-12 11:14:14,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:14:14,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:14:14,051 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:14:14,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-12 11:14:14,639 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-12 11:14:14,639 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 11:14:14,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 1889 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 11:14:14,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:14:14,684 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2022-07-12 11:14:14,684 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:14:14,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:14:14,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554533558] [2022-07-12 11:14:14,685 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:14:14,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987170667] [2022-07-12 11:14:14,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987170667] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:14:14,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:14:14,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 11:14:14,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067174725] [2022-07-12 11:14:14,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:14:14,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 11:14:14,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:14:14,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 11:14:14,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 11:14:14,687 INFO L87 Difference]: Start difference. First operand 522 states and 753 transitions. Second operand has 6 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-12 11:14:14,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:14:14,876 INFO L93 Difference]: Finished difference Result 911 states and 1361 transitions. [2022-07-12 11:14:14,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 11:14:14,876 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 241 [2022-07-12 11:14:14,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:14:14,879 INFO L225 Difference]: With dead ends: 911 [2022-07-12 11:14:14,879 INFO L226 Difference]: Without dead ends: 522 [2022-07-12 11:14:14,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 11:14:14,882 INFO L413 NwaCegarLoop]: 594 mSDtfsCounter, 2 mSDsluCounter, 2278 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2872 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 11:14:14,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2872 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 11:14:14,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2022-07-12 11:14:14,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 522. [2022-07-12 11:14:14,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 321 states have (on average 1.2429906542056075) internal successors, (399), 325 states have internal predecessors, (399), 164 states have call successors, (164), 34 states have call predecessors, (164), 35 states have return successors, (189), 163 states have call predecessors, (189), 162 states have call successors, (189) [2022-07-12 11:14:14,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 752 transitions. [2022-07-12 11:14:14,929 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 752 transitions. Word has length 241 [2022-07-12 11:14:14,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:14:14,930 INFO L495 AbstractCegarLoop]: Abstraction has 522 states and 752 transitions. [2022-07-12 11:14:14,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-12 11:14:14,930 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 752 transitions. [2022-07-12 11:14:14,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-07-12 11:14:14,931 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:14:14,931 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:14:14,955 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-12 11:14:15,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-12 11:14:15,145 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:14:15,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:14:15,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1662762273, now seen corresponding path program 4 times [2022-07-12 11:14:15,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:14:15,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769799249] [2022-07-12 11:14:15,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:15,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:14:15,215 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:14:15,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1210043925] [2022-07-12 11:14:15,216 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-12 11:14:15,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:14:15,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:14:15,217 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:14:15,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-12 11:14:15,783 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-12 11:14:15,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 11:14:15,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 3393 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 11:14:15,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:14:15,878 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2022-07-12 11:14:15,878 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:14:15,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:14:15,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769799249] [2022-07-12 11:14:15,878 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:14:15,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210043925] [2022-07-12 11:14:15,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210043925] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:14:15,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:14:15,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 11:14:15,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122219351] [2022-07-12 11:14:15,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:14:15,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 11:14:15,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:14:15,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 11:14:15,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 11:14:15,881 INFO L87 Difference]: Start difference. First operand 522 states and 752 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 states have internal predecessors, (77), 5 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) [2022-07-12 11:14:17,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:14:17,970 INFO L93 Difference]: Finished difference Result 922 states and 1353 transitions. [2022-07-12 11:14:17,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 11:14:17,971 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 states have internal predecessors, (77), 5 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) Word has length 256 [2022-07-12 11:14:17,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:14:17,974 INFO L225 Difference]: With dead ends: 922 [2022-07-12 11:14:17,974 INFO L226 Difference]: Without dead ends: 534 [2022-07-12 11:14:17,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-12 11:14:17,976 INFO L413 NwaCegarLoop]: 592 mSDtfsCounter, 63 mSDsluCounter, 3385 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 3977 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-12 11:14:17,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 3977 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-12 11:14:17,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2022-07-12 11:14:17,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2022-07-12 11:14:17,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 327 states have (on average 1.2415902140672783) internal successors, (406), 331 states have internal predecessors, (406), 169 states have call successors, (169), 35 states have call predecessors, (169), 36 states have return successors, (194), 168 states have call predecessors, (194), 167 states have call successors, (194) [2022-07-12 11:14:17,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 769 transitions. [2022-07-12 11:14:17,992 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 769 transitions. Word has length 256 [2022-07-12 11:14:17,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:14:17,993 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 769 transitions. [2022-07-12 11:14:17,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 states have internal predecessors, (77), 5 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) [2022-07-12 11:14:17,993 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 769 transitions. [2022-07-12 11:14:17,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2022-07-12 11:14:17,994 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:14:17,994 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:14:18,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-12 11:14:18,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-12 11:14:18,216 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:14:18,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:14:18,216 INFO L85 PathProgramCache]: Analyzing trace with hash -350828385, now seen corresponding path program 1 times [2022-07-12 11:14:18,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:14:18,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496509848] [2022-07-12 11:14:18,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:18,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:14:18,283 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:14:18,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1587298429] [2022-07-12 11:14:18,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:18,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:14:18,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:14:18,285 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:14:18,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-12 11:14:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:18,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 3534 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 11:14:18,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:14:18,964 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 236 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2022-07-12 11:14:18,964 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:14:18,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:14:18,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496509848] [2022-07-12 11:14:18,965 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:14:18,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587298429] [2022-07-12 11:14:18,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587298429] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:14:18,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:14:18,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 11:14:18,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786439787] [2022-07-12 11:14:18,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:14:18,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 11:14:18,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:14:18,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 11:14:18,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 11:14:18,966 INFO L87 Difference]: Start difference. First operand 534 states and 769 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 11:14:20,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:14:20,388 INFO L93 Difference]: Finished difference Result 1047 states and 1570 transitions. [2022-07-12 11:14:20,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 11:14:20,389 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 271 [2022-07-12 11:14:20,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:14:20,392 INFO L225 Difference]: With dead ends: 1047 [2022-07-12 11:14:20,392 INFO L226 Difference]: Without dead ends: 588 [2022-07-12 11:14:20,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-12 11:14:20,394 INFO L413 NwaCegarLoop]: 634 mSDtfsCounter, 21 mSDsluCounter, 2313 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2947 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-12 11:14:20,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2947 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-12 11:14:20,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2022-07-12 11:14:20,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 546. [2022-07-12 11:14:20,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 339 states have (on average 1.2418879056047198) internal successors, (421), 343 states have internal predecessors, (421), 169 states have call successors, (169), 35 states have call predecessors, (169), 36 states have return successors, (194), 168 states have call predecessors, (194), 167 states have call successors, (194) [2022-07-12 11:14:20,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 784 transitions. [2022-07-12 11:14:20,412 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 784 transitions. Word has length 271 [2022-07-12 11:14:20,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:14:20,412 INFO L495 AbstractCegarLoop]: Abstraction has 546 states and 784 transitions. [2022-07-12 11:14:20,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 11:14:20,412 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 784 transitions. [2022-07-12 11:14:20,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2022-07-12 11:14:20,414 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:14:20,414 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:14:20,438 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-12 11:14:20,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-12 11:14:20,631 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:14:20,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:14:20,632 INFO L85 PathProgramCache]: Analyzing trace with hash -899887649, now seen corresponding path program 1 times [2022-07-12 11:14:20,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:14:20,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781204501] [2022-07-12 11:14:20,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:20,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:14:20,699 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:14:20,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [671438991] [2022-07-12 11:14:20,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:20,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:14:20,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:14:20,701 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:14:20,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-12 11:14:21,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:21,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 3528 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 11:14:21,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:14:21,310 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 238 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2022-07-12 11:14:21,310 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:14:21,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:14:21,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781204501] [2022-07-12 11:14:21,311 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:14:21,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671438991] [2022-07-12 11:14:21,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671438991] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:14:21,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:14:21,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 11:14:21,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838837169] [2022-07-12 11:14:21,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:14:21,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 11:14:21,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:14:21,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 11:14:21,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 11:14:21,312 INFO L87 Difference]: Start difference. First operand 546 states and 784 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 11:14:21,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:14:21,337 INFO L93 Difference]: Finished difference Result 1023 states and 1512 transitions. [2022-07-12 11:14:21,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 11:14:21,338 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 271 [2022-07-12 11:14:21,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:14:21,341 INFO L225 Difference]: With dead ends: 1023 [2022-07-12 11:14:21,341 INFO L226 Difference]: Without dead ends: 558 [2022-07-12 11:14:21,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 11:14:21,343 INFO L413 NwaCegarLoop]: 625 mSDtfsCounter, 3 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1870 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 11:14:21,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1870 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 11:14:21,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-07-12 11:14:21,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 552. [2022-07-12 11:14:21,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 345 states have (on average 1.23768115942029) internal successors, (427), 349 states have internal predecessors, (427), 169 states have call successors, (169), 35 states have call predecessors, (169), 36 states have return successors, (194), 168 states have call predecessors, (194), 167 states have call successors, (194) [2022-07-12 11:14:21,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 790 transitions. [2022-07-12 11:14:21,360 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 790 transitions. Word has length 271 [2022-07-12 11:14:21,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:14:21,361 INFO L495 AbstractCegarLoop]: Abstraction has 552 states and 790 transitions. [2022-07-12 11:14:21,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 11:14:21,361 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 790 transitions. [2022-07-12 11:14:21,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2022-07-12 11:14:21,362 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:14:21,362 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:14:21,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-12 11:14:21,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-12 11:14:21,579 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:14:21,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:14:21,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1910711071, now seen corresponding path program 1 times [2022-07-12 11:14:21,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:14:21,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121058422] [2022-07-12 11:14:21,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:21,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:14:21,636 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:14:21,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [54272735] [2022-07-12 11:14:21,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:21,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:14:21,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:14:21,637 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:14:21,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-12 11:14:22,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:22,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 3518 conjuncts, 26 conjunts are in the unsatisfiable core [2022-07-12 11:14:22,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:14:22,382 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-07-12 11:14:22,382 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:14:22,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:14:22,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121058422] [2022-07-12 11:14:22,382 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:14:22,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [54272735] [2022-07-12 11:14:22,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [54272735] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:14:22,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:14:22,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 11:14:22,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595365006] [2022-07-12 11:14:22,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:14:22,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 11:14:22,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:14:22,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 11:14:22,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 11:14:22,384 INFO L87 Difference]: Start difference. First operand 552 states and 790 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 5 states have call predecessors, (25), 4 states have call successors, (25) [2022-07-12 11:14:25,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:14:25,983 INFO L93 Difference]: Finished difference Result 1009 states and 1477 transitions. [2022-07-12 11:14:25,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 11:14:25,984 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 5 states have call predecessors, (25), 4 states have call successors, (25) Word has length 271 [2022-07-12 11:14:25,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:14:25,986 INFO L225 Difference]: With dead ends: 1009 [2022-07-12 11:14:25,986 INFO L226 Difference]: Without dead ends: 594 [2022-07-12 11:14:25,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-07-12 11:14:25,989 INFO L413 NwaCegarLoop]: 650 mSDtfsCounter, 42 mSDsluCounter, 3835 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 4485 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-07-12 11:14:25,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 4485 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-07-12 11:14:25,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2022-07-12 11:14:26,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 571. [2022-07-12 11:14:26,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 358 states have (on average 1.2402234636871508) internal successors, (444), 362 states have internal predecessors, (444), 174 states have call successors, (174), 35 states have call predecessors, (174), 37 states have return successors, (204), 174 states have call predecessors, (204), 172 states have call successors, (204) [2022-07-12 11:14:26,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 822 transitions. [2022-07-12 11:14:26,006 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 822 transitions. Word has length 271 [2022-07-12 11:14:26,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:14:26,007 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 822 transitions. [2022-07-12 11:14:26,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 5 states have call predecessors, (25), 4 states have call successors, (25) [2022-07-12 11:14:26,007 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 822 transitions. [2022-07-12 11:14:26,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-07-12 11:14:26,008 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:14:26,009 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:14:26,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-12 11:14:26,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-12 11:14:26,223 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:14:26,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:14:26,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1871546181, now seen corresponding path program 1 times [2022-07-12 11:14:26,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:14:26,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697887097] [2022-07-12 11:14:26,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:26,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:14:26,297 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:14:26,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [213828915] [2022-07-12 11:14:26,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:26,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:14:26,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:14:26,299 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:14:26,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-12 11:14:27,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:27,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 3553 conjuncts, 59 conjunts are in the unsatisfiable core [2022-07-12 11:14:27,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:14:27,484 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2022-07-12 11:14:27,488 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-07-12 11:14:27,506 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 296 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-07-12 11:14:27,507 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:14:27,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:14:27,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697887097] [2022-07-12 11:14:27,507 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:14:27,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213828915] [2022-07-12 11:14:27,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213828915] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:14:27,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:14:27,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-12 11:14:27,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627506992] [2022-07-12 11:14:27,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:14:27,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 11:14:27,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:14:27,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 11:14:27,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-12 11:14:27,509 INFO L87 Difference]: Start difference. First operand 571 states and 822 transitions. Second operand has 13 states, 13 states have (on average 8.846153846153847) internal successors, (115), 13 states have internal predecessors, (115), 7 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (29), 7 states have call predecessors, (29), 7 states have call successors, (29) [2022-07-12 11:14:31,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:14:31,439 INFO L93 Difference]: Finished difference Result 1100 states and 1643 transitions. [2022-07-12 11:14:31,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 11:14:31,439 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.846153846153847) internal successors, (115), 13 states have internal predecessors, (115), 7 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (29), 7 states have call predecessors, (29), 7 states have call successors, (29) Word has length 282 [2022-07-12 11:14:31,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:14:31,443 INFO L225 Difference]: With dead ends: 1100 [2022-07-12 11:14:31,443 INFO L226 Difference]: Without dead ends: 669 [2022-07-12 11:14:31,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 267 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2022-07-12 11:14:31,445 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 112 mSDsluCounter, 5509 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 6111 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 158 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-07-12 11:14:31,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 6111 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 967 Invalid, 0 Unknown, 158 Unchecked, 3.7s Time] [2022-07-12 11:14:31,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2022-07-12 11:14:31,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 613. [2022-07-12 11:14:31,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 389 states have (on average 1.231362467866324) internal successors, (479), 393 states have internal predecessors, (479), 179 states have call successors, (179), 39 states have call predecessors, (179), 43 states have return successors, (211), 181 states have call predecessors, (211), 177 states have call successors, (211) [2022-07-12 11:14:31,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 869 transitions. [2022-07-12 11:14:31,465 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 869 transitions. Word has length 282 [2022-07-12 11:14:31,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:14:31,466 INFO L495 AbstractCegarLoop]: Abstraction has 613 states and 869 transitions. [2022-07-12 11:14:31,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.846153846153847) internal successors, (115), 13 states have internal predecessors, (115), 7 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (29), 7 states have call predecessors, (29), 7 states have call successors, (29) [2022-07-12 11:14:31,466 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 869 transitions. [2022-07-12 11:14:31,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-07-12 11:14:31,467 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:14:31,467 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:14:31,494 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-12 11:14:31,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:14:31,687 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:14:31,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:14:31,688 INFO L85 PathProgramCache]: Analyzing trace with hash -11316295, now seen corresponding path program 1 times [2022-07-12 11:14:31,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:14:31,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108596272] [2022-07-12 11:14:31,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:31,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:14:31,741 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:14:31,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2122737453] [2022-07-12 11:14:31,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:31,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:14:31,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:14:31,743 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:14:31,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-12 11:14:32,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:32,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 3556 conjuncts, 22 conjunts are in the unsatisfiable core [2022-07-12 11:14:32,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:14:32,443 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-07-12 11:14:32,444 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:14:32,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:14:32,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108596272] [2022-07-12 11:14:32,444 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:14:32,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122737453] [2022-07-12 11:14:32,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122737453] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:14:32,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:14:32,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 11:14:32,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343170067] [2022-07-12 11:14:32,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:14:32,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 11:14:32,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:14:32,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 11:14:32,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 11:14:32,446 INFO L87 Difference]: Start difference. First operand 613 states and 869 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-12 11:14:32,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:14:32,481 INFO L93 Difference]: Finished difference Result 1124 states and 1672 transitions. [2022-07-12 11:14:32,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 11:14:32,481 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 282 [2022-07-12 11:14:32,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:14:32,484 INFO L225 Difference]: With dead ends: 1124 [2022-07-12 11:14:32,484 INFO L226 Difference]: Without dead ends: 647 [2022-07-12 11:14:32,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 11:14:32,487 INFO L413 NwaCegarLoop]: 652 mSDtfsCounter, 8 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2582 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 11:14:32,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2582 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 11:14:32,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2022-07-12 11:14:32,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 629. [2022-07-12 11:14:32,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 405 states have (on average 1.2296296296296296) internal successors, (498), 409 states have internal predecessors, (498), 179 states have call successors, (179), 39 states have call predecessors, (179), 43 states have return successors, (211), 181 states have call predecessors, (211), 177 states have call successors, (211) [2022-07-12 11:14:32,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 888 transitions. [2022-07-12 11:14:32,507 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 888 transitions. Word has length 282 [2022-07-12 11:14:32,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:14:32,507 INFO L495 AbstractCegarLoop]: Abstraction has 629 states and 888 transitions. [2022-07-12 11:14:32,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-12 11:14:32,507 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 888 transitions. [2022-07-12 11:14:32,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-07-12 11:14:32,509 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:14:32,509 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:14:32,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-12 11:14:32,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-12 11:14:32,726 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:14:32,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:14:32,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1435853579, now seen corresponding path program 1 times [2022-07-12 11:14:32,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:14:32,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897364301] [2022-07-12 11:14:32,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:32,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:14:32,783 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:14:32,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1669575053] [2022-07-12 11:14:32,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:32,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:14:32,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:14:32,785 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:14:32,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-12 11:14:33,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:33,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 3553 conjuncts, 42 conjunts are in the unsatisfiable core [2022-07-12 11:14:33,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:14:33,875 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-07-12 11:14:33,877 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-07-12 11:14:33,893 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-07-12 11:14:33,893 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:14:33,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:14:33,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897364301] [2022-07-12 11:14:33,894 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:14:33,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669575053] [2022-07-12 11:14:33,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669575053] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:14:33,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:14:33,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-12 11:14:33,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128607123] [2022-07-12 11:14:33,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:14:33,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 11:14:33,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:14:33,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 11:14:33,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-07-12 11:14:33,895 INFO L87 Difference]: Start difference. First operand 629 states and 888 transitions. Second operand has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 8 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (30), 8 states have call predecessors, (30), 8 states have call successors, (30) [2022-07-12 11:14:37,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:14:37,461 INFO L93 Difference]: Finished difference Result 1294 states and 1878 transitions. [2022-07-12 11:14:37,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 11:14:37,461 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 8 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (30), 8 states have call predecessors, (30), 8 states have call successors, (30) Word has length 283 [2022-07-12 11:14:37,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:14:37,465 INFO L225 Difference]: With dead ends: 1294 [2022-07-12 11:14:37,465 INFO L226 Difference]: Without dead ends: 778 [2022-07-12 11:14:37,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 270 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2022-07-12 11:14:37,468 INFO L413 NwaCegarLoop]: 579 mSDtfsCounter, 153 mSDsluCounter, 5851 mSDsCounter, 0 mSdLazyCounter, 1405 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 6430 SdHoareTripleChecker+Invalid, 1583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 163 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-12 11:14:37,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 6430 Invalid, 1583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1405 Invalid, 0 Unknown, 163 Unchecked, 3.4s Time] [2022-07-12 11:14:37,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2022-07-12 11:14:37,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 686. [2022-07-12 11:14:37,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 449 states have (on average 1.22271714922049) internal successors, (549), 453 states have internal predecessors, (549), 185 states have call successors, (185), 43 states have call predecessors, (185), 50 states have return successors, (221), 190 states have call predecessors, (221), 183 states have call successors, (221) [2022-07-12 11:14:37,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 955 transitions. [2022-07-12 11:14:37,518 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 955 transitions. Word has length 283 [2022-07-12 11:14:37,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:14:37,519 INFO L495 AbstractCegarLoop]: Abstraction has 686 states and 955 transitions. [2022-07-12 11:14:37,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 8 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (30), 8 states have call predecessors, (30), 8 states have call successors, (30) [2022-07-12 11:14:37,519 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 955 transitions. [2022-07-12 11:14:37,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-07-12 11:14:37,520 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:14:37,520 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:14:37,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-07-12 11:14:37,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-07-12 11:14:37,721 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:14:37,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:14:37,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1447017357, now seen corresponding path program 1 times [2022-07-12 11:14:37,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:14:37,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808961220] [2022-07-12 11:14:37,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:37,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:14:37,776 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:14:37,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1357005349] [2022-07-12 11:14:37,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:37,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:14:37,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:14:37,778 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:14:37,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-12 11:14:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:38,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 3510 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 11:14:38,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:14:38,488 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 223 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2022-07-12 11:14:38,488 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:14:38,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:14:38,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808961220] [2022-07-12 11:14:38,488 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:14:38,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357005349] [2022-07-12 11:14:38,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357005349] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:14:38,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:14:38,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 11:14:38,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094017611] [2022-07-12 11:14:38,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:14:38,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 11:14:38,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:14:38,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 11:14:38,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 11:14:38,490 INFO L87 Difference]: Start difference. First operand 686 states and 955 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 11:14:38,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:14:38,523 INFO L93 Difference]: Finished difference Result 1341 states and 1940 transitions. [2022-07-12 11:14:38,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 11:14:38,523 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 272 [2022-07-12 11:14:38,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:14:38,526 INFO L225 Difference]: With dead ends: 1341 [2022-07-12 11:14:38,526 INFO L226 Difference]: Without dead ends: 694 [2022-07-12 11:14:38,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 11:14:38,529 INFO L413 NwaCegarLoop]: 632 mSDtfsCounter, 7 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1876 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 11:14:38,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1876 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 11:14:38,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2022-07-12 11:14:38,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 688. [2022-07-12 11:14:38,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 451 states have (on average 1.2195121951219512) internal successors, (550), 455 states have internal predecessors, (550), 185 states have call successors, (185), 43 states have call predecessors, (185), 50 states have return successors, (221), 190 states have call predecessors, (221), 183 states have call successors, (221) [2022-07-12 11:14:38,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 956 transitions. [2022-07-12 11:14:38,551 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 956 transitions. Word has length 272 [2022-07-12 11:14:38,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:14:38,551 INFO L495 AbstractCegarLoop]: Abstraction has 688 states and 956 transitions. [2022-07-12 11:14:38,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 11:14:38,551 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 956 transitions. [2022-07-12 11:14:38,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-07-12 11:14:38,553 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:14:38,553 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:14:38,578 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-07-12 11:14:38,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-12 11:14:38,768 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:14:38,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:14:38,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1199324825, now seen corresponding path program 1 times [2022-07-12 11:14:38,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:14:38,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498919259] [2022-07-12 11:14:38,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:38,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:14:38,828 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:14:38,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1132419077] [2022-07-12 11:14:38,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:38,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:14:38,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:14:38,830 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:14:38,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-12 11:14:39,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:39,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 3563 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 11:14:39,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:14:39,583 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 236 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-07-12 11:14:39,583 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:14:39,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:14:39,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498919259] [2022-07-12 11:14:39,584 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:14:39,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132419077] [2022-07-12 11:14:39,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132419077] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:14:39,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:14:39,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 11:14:39,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994812581] [2022-07-12 11:14:39,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:14:39,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 11:14:39,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:14:39,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 11:14:39,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 11:14:39,585 INFO L87 Difference]: Start difference. First operand 688 states and 956 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-12 11:14:40,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:14:40,668 INFO L93 Difference]: Finished difference Result 1352 states and 1967 transitions. [2022-07-12 11:14:40,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 11:14:40,669 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 285 [2022-07-12 11:14:40,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:14:40,673 INFO L225 Difference]: With dead ends: 1352 [2022-07-12 11:14:40,673 INFO L226 Difference]: Without dead ends: 703 [2022-07-12 11:14:40,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-12 11:14:40,676 INFO L413 NwaCegarLoop]: 635 mSDtfsCounter, 15 mSDsluCounter, 1758 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2393 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-12 11:14:40,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2393 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-12 11:14:40,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2022-07-12 11:14:40,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 690. [2022-07-12 11:14:40,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 453 states have (on average 1.218543046357616) internal successors, (552), 457 states have internal predecessors, (552), 185 states have call successors, (185), 43 states have call predecessors, (185), 50 states have return successors, (221), 190 states have call predecessors, (221), 183 states have call successors, (221) [2022-07-12 11:14:40,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 958 transitions. [2022-07-12 11:14:40,698 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 958 transitions. Word has length 285 [2022-07-12 11:14:40,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:14:40,698 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 958 transitions. [2022-07-12 11:14:40,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-12 11:14:40,698 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 958 transitions. [2022-07-12 11:14:40,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-07-12 11:14:40,700 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:14:40,700 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:14:40,726 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-07-12 11:14:40,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:14:40,924 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:14:40,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:14:40,924 INFO L85 PathProgramCache]: Analyzing trace with hash 557856809, now seen corresponding path program 1 times [2022-07-12 11:14:40,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:14:40,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755410961] [2022-07-12 11:14:40,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:40,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:14:40,991 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:14:40,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1448988594] [2022-07-12 11:14:40,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:40,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:14:40,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:14:40,993 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:14:41,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-07-12 11:14:41,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:41,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 3520 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-12 11:14:41,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:14:41,768 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-07-12 11:14:41,769 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:14:41,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:14:41,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755410961] [2022-07-12 11:14:41,769 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:14:41,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448988594] [2022-07-12 11:14:41,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448988594] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:14:41,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:14:41,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 11:14:41,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333421702] [2022-07-12 11:14:41,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:14:41,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 11:14:41,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:14:41,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 11:14:41,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 11:14:41,771 INFO L87 Difference]: Start difference. First operand 690 states and 958 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 4 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-07-12 11:14:42,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:14:42,572 INFO L93 Difference]: Finished difference Result 1157 states and 1651 transitions. [2022-07-12 11:14:42,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 11:14:42,572 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 4 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 274 [2022-07-12 11:14:42,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:14:42,575 INFO L225 Difference]: With dead ends: 1157 [2022-07-12 11:14:42,576 INFO L226 Difference]: Without dead ends: 717 [2022-07-12 11:14:42,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-07-12 11:14:42,578 INFO L413 NwaCegarLoop]: 647 mSDtfsCounter, 31 mSDsluCounter, 2518 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 3165 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 11:14:42,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 3165 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 11:14:42,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2022-07-12 11:14:42,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 696. [2022-07-12 11:14:42,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 456 states have (on average 1.2149122807017543) internal successors, (554), 460 states have internal predecessors, (554), 188 states have call successors, (188), 43 states have call predecessors, (188), 50 states have return successors, (224), 193 states have call predecessors, (224), 186 states have call successors, (224) [2022-07-12 11:14:42,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 966 transitions. [2022-07-12 11:14:42,599 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 966 transitions. Word has length 274 [2022-07-12 11:14:42,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:14:42,599 INFO L495 AbstractCegarLoop]: Abstraction has 696 states and 966 transitions. [2022-07-12 11:14:42,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 4 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-07-12 11:14:42,599 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 966 transitions. [2022-07-12 11:14:42,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-07-12 11:14:42,601 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:14:42,601 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:14:42,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-07-12 11:14:42,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:14:42,824 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:14:42,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:14:42,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1021409317, now seen corresponding path program 1 times [2022-07-12 11:14:42,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:14:42,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701781554] [2022-07-12 11:14:42,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:42,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:14:42,890 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:14:42,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [91173105] [2022-07-12 11:14:42,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:42,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:14:42,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:14:42,892 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:14:42,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-07-12 11:14:43,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:43,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 3558 conjuncts, 60 conjunts are in the unsatisfiable core [2022-07-12 11:14:43,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:14:43,750 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_7013 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_7013))) is different from true [2022-07-12 11:14:43,851 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-12 11:14:43,878 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2022-07-12 11:14:43,904 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 262 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2022-07-12 11:14:43,904 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:14:43,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:14:43,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701781554] [2022-07-12 11:14:43,904 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:14:43,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91173105] [2022-07-12 11:14:43,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91173105] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:14:43,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:14:43,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-12 11:14:43,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610547050] [2022-07-12 11:14:43,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:14:43,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-12 11:14:43,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:14:43,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-12 11:14:43,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=123, Unknown=10, NotChecked=22, Total=182 [2022-07-12 11:14:43,906 INFO L87 Difference]: Start difference. First operand 696 states and 966 transitions. Second operand has 14 states, 14 states have (on average 8.428571428571429) internal successors, (118), 13 states have internal predecessors, (118), 7 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) [2022-07-12 11:14:48,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:14:48,057 INFO L93 Difference]: Finished difference Result 1485 states and 2187 transitions. [2022-07-12 11:14:48,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-12 11:14:48,057 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.428571428571429) internal successors, (118), 13 states have internal predecessors, (118), 7 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) Word has length 285 [2022-07-12 11:14:48,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:14:48,061 INFO L225 Difference]: With dead ends: 1485 [2022-07-12 11:14:48,062 INFO L226 Difference]: Without dead ends: 884 [2022-07-12 11:14:48,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=243, Unknown=15, NotChecked=32, Total=342 [2022-07-12 11:14:48,065 INFO L413 NwaCegarLoop]: 567 mSDtfsCounter, 194 mSDsluCounter, 3488 mSDsCounter, 0 mSdLazyCounter, 2709 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 4055 SdHoareTripleChecker+Invalid, 5522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 2709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2614 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-07-12 11:14:48,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 4055 Invalid, 5522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 2709 Invalid, 0 Unknown, 2614 Unchecked, 4.0s Time] [2022-07-12 11:14:48,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2022-07-12 11:14:48,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 719. [2022-07-12 11:14:48,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 474 states have (on average 1.2025316455696202) internal successors, (570), 477 states have internal predecessors, (570), 188 states have call successors, (188), 43 states have call predecessors, (188), 55 states have return successors, (249), 199 states have call predecessors, (249), 186 states have call successors, (249) [2022-07-12 11:14:48,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 1007 transitions. [2022-07-12 11:14:48,090 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 1007 transitions. Word has length 285 [2022-07-12 11:14:48,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:14:48,091 INFO L495 AbstractCegarLoop]: Abstraction has 719 states and 1007 transitions. [2022-07-12 11:14:48,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.428571428571429) internal successors, (118), 13 states have internal predecessors, (118), 7 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) [2022-07-12 11:14:48,091 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 1007 transitions. [2022-07-12 11:14:48,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-07-12 11:14:48,093 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:14:48,093 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:14:48,119 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-07-12 11:14:48,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-07-12 11:14:48,307 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:14:48,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:14:48,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1757248889, now seen corresponding path program 1 times [2022-07-12 11:14:48,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:14:48,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300438429] [2022-07-12 11:14:48,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:48,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:14:48,360 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:14:48,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [661027646] [2022-07-12 11:14:48,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:48,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:14:48,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:14:48,361 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:14:48,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-07-12 11:14:49,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:49,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 3563 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-12 11:14:49,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:14:49,184 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2022-07-12 11:14:49,184 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:14:49,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:14:49,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300438429] [2022-07-12 11:14:49,184 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:14:49,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661027646] [2022-07-12 11:14:49,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661027646] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:14:49,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:14:49,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 11:14:49,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45350596] [2022-07-12 11:14:49,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:14:49,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 11:14:49,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:14:49,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 11:14:49,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-12 11:14:49,186 INFO L87 Difference]: Start difference. First operand 719 states and 1007 transitions. Second operand has 9 states, 9 states have (on average 14.0) internal successors, (126), 7 states have internal predecessors, (126), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-12 11:14:51,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:14:51,313 INFO L93 Difference]: Finished difference Result 1182 states and 1705 transitions. [2022-07-12 11:14:51,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 11:14:51,315 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.0) internal successors, (126), 7 states have internal predecessors, (126), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) Word has length 297 [2022-07-12 11:14:51,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:14:51,318 INFO L225 Difference]: With dead ends: 1182 [2022-07-12 11:14:51,318 INFO L226 Difference]: Without dead ends: 734 [2022-07-12 11:14:51,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-07-12 11:14:51,321 INFO L413 NwaCegarLoop]: 667 mSDtfsCounter, 24 mSDsluCounter, 4605 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 5272 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-12 11:14:51,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 5272 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-12 11:14:51,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2022-07-12 11:14:51,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 713. [2022-07-12 11:14:51,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 471 states have (on average 1.1995753715498938) internal successors, (565), 474 states have internal predecessors, (565), 185 states have call successors, (185), 43 states have call predecessors, (185), 55 states have return successors, (246), 196 states have call predecessors, (246), 183 states have call successors, (246) [2022-07-12 11:14:51,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 996 transitions. [2022-07-12 11:14:51,343 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 996 transitions. Word has length 297 [2022-07-12 11:14:51,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:14:51,343 INFO L495 AbstractCegarLoop]: Abstraction has 713 states and 996 transitions. [2022-07-12 11:14:51,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.0) internal successors, (126), 7 states have internal predecessors, (126), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-12 11:14:51,344 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 996 transitions. [2022-07-12 11:14:51,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2022-07-12 11:14:51,345 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:14:51,345 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:14:51,372 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-07-12 11:14:51,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-07-12 11:14:51,559 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:14:51,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:14:51,560 INFO L85 PathProgramCache]: Analyzing trace with hash -777018782, now seen corresponding path program 1 times [2022-07-12 11:14:51,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:14:51,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470981930] [2022-07-12 11:14:51,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:51,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:14:51,613 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:14:51,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1342104863] [2022-07-12 11:14:51,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:51,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:14:51,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:14:51,615 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:14:51,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-07-12 11:14:52,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:14:52,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 3570 conjuncts, 43 conjunts are in the unsatisfiable core [2022-07-12 11:14:52,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:14:52,546 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 198 proven. 1 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-07-12 11:14:52,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 11:14:53,196 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 70 proven. 13 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-07-12 11:14:53,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:14:53,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470981930] [2022-07-12 11:14:53,196 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:14:53,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1342104863] [2022-07-12 11:14:53,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1342104863] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 11:14:53,196 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 11:14:53,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 22 [2022-07-12 11:14:53,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870663475] [2022-07-12 11:14:53,196 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 11:14:53,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-12 11:14:53,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:14:53,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-12 11:14:53,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=415, Unknown=0, NotChecked=0, Total=462 [2022-07-12 11:14:53,198 INFO L87 Difference]: Start difference. First operand 713 states and 996 transitions. Second operand has 22 states, 18 states have (on average 7.388888888888889) internal successors, (133), 15 states have internal predecessors, (133), 6 states have call successors, (35), 3 states have call predecessors, (35), 7 states have return successors, (36), 8 states have call predecessors, (36), 5 states have call successors, (36) [2022-07-12 11:14:53,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:14:53,950 INFO L93 Difference]: Finished difference Result 1170 states and 1717 transitions. [2022-07-12 11:14:53,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-12 11:14:53,951 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 18 states have (on average 7.388888888888889) internal successors, (133), 15 states have internal predecessors, (133), 6 states have call successors, (35), 3 states have call predecessors, (35), 7 states have return successors, (36), 8 states have call predecessors, (36), 5 states have call successors, (36) Word has length 303 [2022-07-12 11:14:53,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:14:53,957 INFO L225 Difference]: With dead ends: 1170 [2022-07-12 11:14:53,957 INFO L226 Difference]: Without dead ends: 735 [2022-07-12 11:14:53,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 607 GetRequests, 583 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2022-07-12 11:14:53,960 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 20 mSDsluCounter, 10833 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 11449 SdHoareTripleChecker+Invalid, 1070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 11:14:53,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 11449 Invalid, 1070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 11:14:53,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2022-07-12 11:14:53,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 720. [2022-07-12 11:14:53,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 477 states have (on average 1.19916142557652) internal successors, (572), 481 states have internal predecessors, (572), 185 states have call successors, (185), 43 states have call predecessors, (185), 56 states have return successors, (263), 196 states have call predecessors, (263), 183 states have call successors, (263) [2022-07-12 11:14:53,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1020 transitions. [2022-07-12 11:14:53,983 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1020 transitions. Word has length 303 [2022-07-12 11:14:53,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:14:53,984 INFO L495 AbstractCegarLoop]: Abstraction has 720 states and 1020 transitions. [2022-07-12 11:14:53,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 18 states have (on average 7.388888888888889) internal successors, (133), 15 states have internal predecessors, (133), 6 states have call successors, (35), 3 states have call predecessors, (35), 7 states have return successors, (36), 8 states have call predecessors, (36), 5 states have call successors, (36) [2022-07-12 11:14:53,984 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1020 transitions. [2022-07-12 11:14:53,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-07-12 11:14:53,986 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:14:53,986 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:14:54,015 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-07-12 11:14:54,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:14:54,206 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:14:54,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:14:54,206 INFO L85 PathProgramCache]: Analyzing trace with hash -863837835, now seen corresponding path program 2 times [2022-07-12 11:14:54,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:14:54,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105879816] [2022-07-12 11:14:54,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:54,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:14:54,263 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:14:54,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1377480916] [2022-07-12 11:14:54,265 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 11:14:54,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:14:54,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:14:54,266 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:14:54,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-07-12 11:14:55,132 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-12 11:14:55,132 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 11:14:55,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 3566 conjuncts, 36 conjunts are in the unsatisfiable core [2022-07-12 11:14:55,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:14:55,227 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2022-07-12 11:14:55,227 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:14:55,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:14:55,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105879816] [2022-07-12 11:14:55,228 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:14:55,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377480916] [2022-07-12 11:14:55,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377480916] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:14:55,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:14:55,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 11:14:55,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587102668] [2022-07-12 11:14:55,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:14:55,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 11:14:55,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:14:55,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 11:14:55,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-12 11:14:55,231 INFO L87 Difference]: Start difference. First operand 720 states and 1020 transitions. Second operand has 12 states, 12 states have (on average 10.916666666666666) internal successors, (131), 9 states have internal predecessors, (131), 2 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (31), 5 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-12 11:14:55,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:14:55,415 INFO L93 Difference]: Finished difference Result 1375 states and 1986 transitions. [2022-07-12 11:14:55,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 11:14:55,415 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.916666666666666) internal successors, (131), 9 states have internal predecessors, (131), 2 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (31), 5 states have call predecessors, (31), 2 states have call successors, (31) Word has length 297 [2022-07-12 11:14:55,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:14:55,421 INFO L225 Difference]: With dead ends: 1375 [2022-07-12 11:14:55,421 INFO L226 Difference]: Without dead ends: 757 [2022-07-12 11:14:55,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-07-12 11:14:55,428 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 18 mSDsluCounter, 6415 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 7063 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 11:14:55,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 7063 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 11:14:55,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2022-07-12 11:14:55,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 729. [2022-07-12 11:14:55,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 485 states have (on average 1.1938144329896907) internal successors, (579), 487 states have internal predecessors, (579), 185 states have call successors, (185), 43 states have call predecessors, (185), 57 states have return successors, (265), 199 states have call predecessors, (265), 183 states have call successors, (265) [2022-07-12 11:14:55,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 1029 transitions. [2022-07-12 11:14:55,467 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 1029 transitions. Word has length 297 [2022-07-12 11:14:55,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:14:55,468 INFO L495 AbstractCegarLoop]: Abstraction has 729 states and 1029 transitions. [2022-07-12 11:14:55,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.916666666666666) internal successors, (131), 9 states have internal predecessors, (131), 2 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (31), 5 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-12 11:14:55,468 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 1029 transitions. [2022-07-12 11:14:55,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-07-12 11:14:55,470 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:14:55,470 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:14:55,521 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-07-12 11:14:55,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:14:55,699 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:14:55,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:14:55,700 INFO L85 PathProgramCache]: Analyzing trace with hash -576673630, now seen corresponding path program 3 times [2022-07-12 11:14:55,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:14:55,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525218665] [2022-07-12 11:14:55,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:14:55,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:14:55,753 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:14:55,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [969695989] [2022-07-12 11:14:55,753 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-12 11:14:55,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:14:55,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:14:55,755 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:14:55,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-07-12 11:15:29,090 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2022-07-12 11:15:29,090 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 11:15:29,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 3567 conjuncts, 139 conjunts are in the unsatisfiable core [2022-07-12 11:15:29,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:15:29,154 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-12 11:15:29,440 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-07-12 11:15:29,441 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2022-07-12 11:15:29,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 11:15:29,449 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-07-12 11:15:31,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 11:15:31,531 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-07-12 11:15:31,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 11:15:31,536 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-07-12 11:15:33,655 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_8480 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_8480))) (exists ((v_ArrVal_8479 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_8479)))) is different from true [2022-07-12 11:15:35,898 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| Int)) (and (exists ((v_ArrVal_8482 Int)) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| v_ArrVal_8482)) |c_#memory_$Pointer$.base|)) (<= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| |c_aws_mul_size_checked_#in~r#1.offset|) (exists ((v_ArrVal_8484 Int)) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| v_ArrVal_8484)) |c_#memory_$Pointer$.offset|)))) is different from true [2022-07-12 11:15:37,922 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_8482 Int) (v_ArrVal_8484 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| Int)) (and (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| v_ArrVal_8484)) |c_#memory_$Pointer$.offset|) (<= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| 0) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| v_ArrVal_8482)) |c_#memory_$Pointer$.base|))) is different from true [2022-07-12 11:15:40,743 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 272 proven. 13 refuted. 0 times theorem prover too weak. 207 trivial. 10 not checked. [2022-07-12 11:15:40,744 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 11:15:41,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:15:41,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525218665] [2022-07-12 11:15:41,889 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:15:41,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969695989] [2022-07-12 11:15:41,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969695989] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 11:15:41,889 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-12 11:15:41,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2022-07-12 11:15:41,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508082854] [2022-07-12 11:15:41,889 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-12 11:15:41,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-07-12 11:15:41,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:15:41,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-07-12 11:15:41,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1197, Unknown=34, NotChecked=216, Total=1560 [2022-07-12 11:15:41,890 INFO L87 Difference]: Start difference. First operand 729 states and 1029 transitions. Second operand has 33 states, 29 states have (on average 5.172413793103448) internal successors, (150), 31 states have internal predecessors, (150), 13 states have call successors, (36), 7 states have call predecessors, (36), 12 states have return successors, (34), 12 states have call predecessors, (34), 13 states have call successors, (34) [2022-07-12 11:15:54,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 11:15:58,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:15:58,096 INFO L93 Difference]: Finished difference Result 1522 states and 2266 transitions. [2022-07-12 11:15:58,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-07-12 11:15:58,097 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 29 states have (on average 5.172413793103448) internal successors, (150), 31 states have internal predecessors, (150), 13 states have call successors, (36), 7 states have call predecessors, (36), 12 states have return successors, (34), 12 states have call predecessors, (34), 13 states have call successors, (34) Word has length 293 [2022-07-12 11:15:58,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:15:58,113 INFO L225 Difference]: With dead ends: 1522 [2022-07-12 11:15:58,113 INFO L226 Difference]: Without dead ends: 988 [2022-07-12 11:15:58,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 426 SyntacticMatches, 6 SemanticMatches, 53 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 659 ImplicationChecksByTransitivity, 21.1s TimeCoverageRelationStatistics Valid=219, Invalid=2376, Unknown=69, NotChecked=306, Total=2970 [2022-07-12 11:15:58,119 INFO L413 NwaCegarLoop]: 633 mSDtfsCounter, 438 mSDsluCounter, 5715 mSDsCounter, 0 mSdLazyCounter, 4070 mSolverCounterSat, 722 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 6348 SdHoareTripleChecker+Invalid, 11910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 722 IncrementalHoareTripleChecker+Valid, 4070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7118 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-07-12 11:15:58,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 6348 Invalid, 11910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [722 Valid, 4070 Invalid, 0 Unknown, 7118 Unchecked, 6.1s Time] [2022-07-12 11:15:58,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2022-07-12 11:15:58,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 813. [2022-07-12 11:15:58,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 813 states, 551 states have (on average 1.190562613430127) internal successors, (656), 560 states have internal predecessors, (656), 191 states have call successors, (191), 47 states have call predecessors, (191), 69 states have return successors, (309), 206 states have call predecessors, (309), 189 states have call successors, (309) [2022-07-12 11:15:58,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1156 transitions. [2022-07-12 11:15:58,180 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 1156 transitions. Word has length 293 [2022-07-12 11:15:58,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:15:58,181 INFO L495 AbstractCegarLoop]: Abstraction has 813 states and 1156 transitions. [2022-07-12 11:15:58,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 29 states have (on average 5.172413793103448) internal successors, (150), 31 states have internal predecessors, (150), 13 states have call successors, (36), 7 states have call predecessors, (36), 12 states have return successors, (34), 12 states have call predecessors, (34), 13 states have call successors, (34) [2022-07-12 11:15:58,181 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 1156 transitions. [2022-07-12 11:15:58,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-07-12 11:15:58,185 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:15:58,186 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:15:58,249 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-07-12 11:15:58,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-07-12 11:15:58,403 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:15:58,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:15:58,404 INFO L85 PathProgramCache]: Analyzing trace with hash -24832274, now seen corresponding path program 1 times [2022-07-12 11:15:58,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:15:58,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690942325] [2022-07-12 11:15:58,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:58,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:15:58,465 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:15:58,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [527795940] [2022-07-12 11:15:58,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:15:58,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:15:58,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:15:58,472 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:15:58,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-07-12 11:15:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:15:59,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 3612 conjuncts, 175 conjunts are in the unsatisfiable core [2022-07-12 11:15:59,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:16:00,181 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_8942 (Array Int Int)) (v_ArrVal_8941 Int) (v_ArrVal_8940 Int)) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_8940))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_8942) |c_#memory_int|) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_8941))))) is different from true [2022-07-12 11:16:00,201 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_8942 (Array Int Int)) (v_ArrVal_8941 Int) (v_ArrVal_8940 Int)) (and (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_8942) |c_#memory_int|) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_8941)) |c_#memory_$Pointer$.base|) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_8940))))) is different from true [2022-07-12 11:16:00,275 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-07-12 11:16:00,275 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 50 [2022-07-12 11:16:00,293 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-12 11:16:00,293 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 25 [2022-07-12 11:16:00,318 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-07-12 11:16:00,318 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 44 [2022-07-12 11:16:00,354 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 6 [2022-07-12 11:16:01,533 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_8945 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_8944 Int) (v_ArrVal_8946 (Array Int Int))) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_8945))) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_8946)) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_8944)) |c_#memory_$Pointer$.offset|))) is different from true [2022-07-12 11:16:12,104 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 334 proven. 10 refuted. 0 times theorem prover too weak. 150 trivial. 19 not checked. [2022-07-12 11:16:12,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 11:16:12,579 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8967 Int) (v_ArrVal_8968 Int) (v_ArrVal_8966 (Array Int Int)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_124| Int)) (let ((.cse0 (+ 32 c_aws_array_list_length_~list.offset))) (or (not (= (select (select (store |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_124| (store (select |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_124|) 0 v_ArrVal_8967)) c_aws_array_list_length_~list.base) .cse0) 0)) (not (= (mod (select (select (store |c_#memory_int| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_124| v_ArrVal_8966) c_aws_array_list_length_~list.base) (+ c_aws_array_list_length_~list.offset 8)) 18446744073709551616) 0)) (not (= 0 (select (select (store |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_124| (store (select |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_124|) 0 v_ArrVal_8968)) c_aws_array_list_length_~list.base) .cse0)))))) is different from false [2022-07-12 11:16:12,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:16:12,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690942325] [2022-07-12 11:16:12,581 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:16:12,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527795940] [2022-07-12 11:16:12,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527795940] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 11:16:12,581 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-12 11:16:12,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2022-07-12 11:16:12,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415670275] [2022-07-12 11:16:12,582 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-12 11:16:12,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-07-12 11:16:12,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:16:12,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-07-12 11:16:12,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1446, Unknown=17, NotChecked=316, Total=1892 [2022-07-12 11:16:12,583 INFO L87 Difference]: Start difference. First operand 813 states and 1156 transitions. Second operand has 40 states, 35 states have (on average 4.6571428571428575) internal successors, (163), 36 states have internal predecessors, (163), 14 states have call successors, (37), 5 states have call predecessors, (37), 11 states have return successors, (35), 12 states have call predecessors, (35), 14 states have call successors, (35) [2022-07-12 11:16:13,082 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_8945 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_8944 Int) (v_ArrVal_8946 (Array Int Int))) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_8945))) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_8946)) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_8944)) |c_#memory_$Pointer$.offset|))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_8942 (Array Int Int)) (v_ArrVal_8941 Int) (v_ArrVal_8940 Int)) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_8940))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_8942) |c_#memory_int|) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_8941)))))) is different from true [2022-07-12 11:16:40,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:16:40,543 INFO L93 Difference]: Finished difference Result 1510 states and 2307 transitions. [2022-07-12 11:16:40,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-07-12 11:16:40,543 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 35 states have (on average 4.6571428571428575) internal successors, (163), 36 states have internal predecessors, (163), 14 states have call successors, (37), 5 states have call predecessors, (37), 11 states have return successors, (35), 12 states have call predecessors, (35), 14 states have call successors, (35) Word has length 297 [2022-07-12 11:16:40,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:16:40,548 INFO L225 Difference]: With dead ends: 1510 [2022-07-12 11:16:40,548 INFO L226 Difference]: Without dead ends: 1037 [2022-07-12 11:16:40,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 283 SyntacticMatches, 8 SemanticMatches, 69 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 965 ImplicationChecksByTransitivity, 29.1s TimeCoverageRelationStatistics Valid=292, Invalid=3978, Unknown=40, NotChecked=660, Total=4970 [2022-07-12 11:16:40,551 INFO L413 NwaCegarLoop]: 591 mSDtfsCounter, 287 mSDsluCounter, 7605 mSDsCounter, 0 mSdLazyCounter, 7119 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 8196 SdHoareTripleChecker+Invalid, 13611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 7119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6250 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-07-12 11:16:40,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 8196 Invalid, 13611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 7119 Invalid, 0 Unknown, 6250 Unchecked, 10.3s Time] [2022-07-12 11:16:40,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2022-07-12 11:16:40,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 867. [2022-07-12 11:16:40,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 593 states have (on average 1.1888701517706577) internal successors, (705), 603 states have internal predecessors, (705), 199 states have call successors, (199), 49 states have call predecessors, (199), 73 states have return successors, (377), 215 states have call predecessors, (377), 197 states have call successors, (377) [2022-07-12 11:16:40,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1281 transitions. [2022-07-12 11:16:40,588 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1281 transitions. Word has length 297 [2022-07-12 11:16:40,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:16:40,588 INFO L495 AbstractCegarLoop]: Abstraction has 867 states and 1281 transitions. [2022-07-12 11:16:40,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 35 states have (on average 4.6571428571428575) internal successors, (163), 36 states have internal predecessors, (163), 14 states have call successors, (37), 5 states have call predecessors, (37), 11 states have return successors, (35), 12 states have call predecessors, (35), 14 states have call successors, (35) [2022-07-12 11:16:40,589 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1281 transitions. [2022-07-12 11:16:40,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-07-12 11:16:40,591 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:16:40,591 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:16:40,621 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2022-07-12 11:16:40,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-07-12 11:16:40,816 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:16:40,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:16:40,816 INFO L85 PathProgramCache]: Analyzing trace with hash 387748623, now seen corresponding path program 1 times [2022-07-12 11:16:40,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:16:40,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58117556] [2022-07-12 11:16:40,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:16:40,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:16:40,869 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:16:40,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [267538798] [2022-07-12 11:16:40,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:16:40,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:16:40,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:16:40,871 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:16:40,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-07-12 11:16:41,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:41,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 3537 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-12 11:16:41,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:16:41,796 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 276 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2022-07-12 11:16:41,796 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 11:16:41,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:16:41,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58117556] [2022-07-12 11:16:41,796 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:16:41,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267538798] [2022-07-12 11:16:41,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267538798] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 11:16:41,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 11:16:41,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 11:16:41,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511684553] [2022-07-12 11:16:41,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 11:16:41,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 11:16:41,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:16:41,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 11:16:41,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 11:16:41,798 INFO L87 Difference]: Start difference. First operand 867 states and 1281 transitions. Second operand has 5 states, 4 states have (on average 29.75) internal successors, (119), 5 states have internal predecessors, (119), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 2 states have call predecessors, (27), 3 states have call successors, (27) [2022-07-12 11:16:42,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:16:42,570 INFO L93 Difference]: Finished difference Result 1396 states and 2144 transitions. [2022-07-12 11:16:42,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 11:16:42,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 29.75) internal successors, (119), 5 states have internal predecessors, (119), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 2 states have call predecessors, (27), 3 states have call successors, (27) Word has length 282 [2022-07-12 11:16:42,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:16:42,574 INFO L225 Difference]: With dead ends: 1396 [2022-07-12 11:16:42,575 INFO L226 Difference]: Without dead ends: 838 [2022-07-12 11:16:42,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 11:16:42,577 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 2 mSDsluCounter, 1688 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2278 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 11:16:42,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2278 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 11:16:42,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2022-07-12 11:16:42,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2022-07-12 11:16:42,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 572 states have (on average 1.187062937062937) internal successors, (679), 584 states have internal predecessors, (679), 193 states have call successors, (193), 49 states have call predecessors, (193), 71 states have return successors, (365), 205 states have call predecessors, (365), 191 states have call successors, (365) [2022-07-12 11:16:42,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1237 transitions. [2022-07-12 11:16:42,608 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1237 transitions. Word has length 282 [2022-07-12 11:16:42,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:16:42,608 INFO L495 AbstractCegarLoop]: Abstraction has 838 states and 1237 transitions. [2022-07-12 11:16:42,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 29.75) internal successors, (119), 5 states have internal predecessors, (119), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 2 states have call predecessors, (27), 3 states have call successors, (27) [2022-07-12 11:16:42,608 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1237 transitions. [2022-07-12 11:16:42,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-07-12 11:16:42,610 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:16:42,610 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:16:42,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-07-12 11:16:42,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-07-12 11:16:42,827 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:16:42,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:16:42,828 INFO L85 PathProgramCache]: Analyzing trace with hash 862417409, now seen corresponding path program 1 times [2022-07-12 11:16:42,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:16:42,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541519592] [2022-07-12 11:16:42,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:16:42,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:16:42,898 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:16:42,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2079449196] [2022-07-12 11:16:42,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:16:42,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:16:42,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:16:42,900 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:16:42,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-07-12 11:16:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 11:16:43,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 3611 conjuncts, 42 conjunts are in the unsatisfiable core [2022-07-12 11:16:43,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:16:43,939 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 290 proven. 11 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2022-07-12 11:16:43,939 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 11:16:44,997 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 76 proven. 42 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2022-07-12 11:16:44,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:16:44,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541519592] [2022-07-12 11:16:44,997 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:16:44,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079449196] [2022-07-12 11:16:44,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079449196] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 11:16:44,998 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 11:16:44,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 21] total 30 [2022-07-12 11:16:44,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53054963] [2022-07-12 11:16:44,998 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 11:16:44,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-07-12 11:16:44,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:16:44,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-07-12 11:16:44,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=799, Unknown=0, NotChecked=0, Total=870 [2022-07-12 11:16:45,000 INFO L87 Difference]: Start difference. First operand 838 states and 1237 transitions. Second operand has 30 states, 26 states have (on average 6.384615384615385) internal successors, (166), 21 states have internal predecessors, (166), 8 states have call successors, (41), 3 states have call predecessors, (41), 10 states have return successors, (43), 12 states have call predecessors, (43), 7 states have call successors, (43) [2022-07-12 11:16:45,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 11:16:45,948 INFO L93 Difference]: Finished difference Result 1519 states and 2344 transitions. [2022-07-12 11:16:45,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-12 11:16:45,948 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 26 states have (on average 6.384615384615385) internal successors, (166), 21 states have internal predecessors, (166), 8 states have call successors, (41), 3 states have call predecessors, (41), 10 states have return successors, (43), 12 states have call predecessors, (43), 7 states have call successors, (43) Word has length 301 [2022-07-12 11:16:45,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 11:16:45,953 INFO L225 Difference]: With dead ends: 1519 [2022-07-12 11:16:45,953 INFO L226 Difference]: Without dead ends: 984 [2022-07-12 11:16:45,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 605 GetRequests, 571 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=99, Invalid=1091, Unknown=0, NotChecked=0, Total=1190 [2022-07-12 11:16:45,956 INFO L413 NwaCegarLoop]: 654 mSDtfsCounter, 37 mSDsluCounter, 12758 mSDsCounter, 0 mSdLazyCounter, 1200 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 13412 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 11:16:45,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 13412 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1200 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 11:16:45,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2022-07-12 11:16:45,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 864. [2022-07-12 11:16:45,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 597 states have (on average 1.1892797319932997) internal successors, (710), 606 states have internal predecessors, (710), 194 states have call successors, (194), 49 states have call predecessors, (194), 71 states have return successors, (360), 209 states have call predecessors, (360), 192 states have call successors, (360) [2022-07-12 11:16:45,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1264 transitions. [2022-07-12 11:16:45,989 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1264 transitions. Word has length 301 [2022-07-12 11:16:45,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 11:16:45,990 INFO L495 AbstractCegarLoop]: Abstraction has 864 states and 1264 transitions. [2022-07-12 11:16:45,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 26 states have (on average 6.384615384615385) internal successors, (166), 21 states have internal predecessors, (166), 8 states have call successors, (41), 3 states have call predecessors, (41), 10 states have return successors, (43), 12 states have call predecessors, (43), 7 states have call successors, (43) [2022-07-12 11:16:45,990 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1264 transitions. [2022-07-12 11:16:45,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-07-12 11:16:45,992 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 11:16:45,992 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 11:16:46,018 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-07-12 11:16:46,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-07-12 11:16:46,205 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 11:16:46,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 11:16:46,205 INFO L85 PathProgramCache]: Analyzing trace with hash -2048642815, now seen corresponding path program 2 times [2022-07-12 11:16:46,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 11:16:46,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60170648] [2022-07-12 11:16:46,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 11:16:46,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 11:16:46,283 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-12 11:16:46,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1053981587] [2022-07-12 11:16:46,283 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 11:16:46,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 11:16:46,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 11:16:46,284 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 11:16:46,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-07-12 11:16:47,429 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-12 11:16:47,429 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 11:16:47,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 3611 conjuncts, 247 conjunts are in the unsatisfiable core [2022-07-12 11:16:47,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 11:16:48,006 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_10163 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_10161 Int) (v_ArrVal_10162 (Array Int Int))) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_10163))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_10161))) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_10162)))) is different from true [2022-07-12 11:16:48,027 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_10163 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_10161 Int) (v_ArrVal_10162 (Array Int Int))) (and (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_10163)) |c_#memory_$Pointer$.offset|) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_10161)) |c_#memory_$Pointer$.base|) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_10162)))) is different from true [2022-07-12 11:16:48,109 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-07-12 11:16:48,109 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 50 [2022-07-12 11:16:48,129 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-12 11:16:48,130 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 25 [2022-07-12 11:16:48,153 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-07-12 11:16:48,153 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 44 [2022-07-12 11:16:48,167 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 6 [2022-07-12 11:16:48,835 INFO L356 Elim1Store]: treesize reduction 93, result has 8.8 percent of original size [2022-07-12 11:16:48,835 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 87 treesize of output 107 [2022-07-12 11:16:48,847 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 36 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 269 [2022-07-12 11:16:48,867 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-12 11:16:48,867 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 34 [2022-07-12 11:16:48,884 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-12 11:16:48,884 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 32 [2022-07-12 11:16:48,893 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-12 11:16:48,908 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 241 treesize of output 213 [2022-07-12 11:16:48,943 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 213 treesize of output 64 [2022-07-12 11:16:48,996 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2022-07-12 11:16:59,323 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_10207 Int)) (= (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_10207)) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_10205 Int)) (= (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_10205)) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_10208 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_10208)))) is different from true [2022-07-12 11:17:19,434 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 524 treesize of output 512 [2022-07-12 11:17:19,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 11:17:19,472 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-12 11:17:19,480 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-12 11:17:19,482 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-07-12 11:17:19,552 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 314 proven. 68 refuted. 19 times theorem prover too weak. 87 trivial. 19 not checked. [2022-07-12 11:17:19,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 11:17:21,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 11:17:21,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60170648] [2022-07-12 11:17:21,344 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-12 11:17:21,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053981587] [2022-07-12 11:17:21,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053981587] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 11:17:21,345 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-12 11:17:21,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2022-07-12 11:17:21,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205795614] [2022-07-12 11:17:21,345 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-12 11:17:21,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-07-12 11:17:21,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 11:17:21,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-07-12 11:17:21,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=2291, Unknown=25, NotChecked=294, Total=2756 [2022-07-12 11:17:21,347 INFO L87 Difference]: Start difference. First operand 864 states and 1264 transitions. Second operand has 44 states, 39 states have (on average 4.461538461538462) internal successors, (174), 38 states have internal predecessors, (174), 18 states have call successors, (40), 6 states have call predecessors, (40), 12 states have return successors, (38), 17 states have call predecessors, (38), 18 states have call successors, (38) [2022-07-12 11:17:22,033 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_10163 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_10161 Int) (v_ArrVal_10162 (Array Int Int))) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_10163))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_10161))) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_10162)))) (exists ((v_ArrVal_10207 Int)) (= (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_10207)) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_10205 Int)) (= (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_10205)) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_10208 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_10208)))) is different from true