./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 eb692b52 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-?-eb692b5 [2022-07-19 22:15:58,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 22:15:58,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 22:15:58,981 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 22:15:58,985 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 22:15:58,986 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 22:15:58,991 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 22:15:58,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 22:15:58,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 22:15:59,002 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 22:15:59,003 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 22:15:59,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 22:15:59,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 22:15:59,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 22:15:59,009 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 22:15:59,011 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 22:15:59,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 22:15:59,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 22:15:59,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 22:15:59,021 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 22:15:59,023 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 22:15:59,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 22:15:59,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 22:15:59,026 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 22:15:59,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 22:15:59,030 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 22:15:59,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 22:15:59,031 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 22:15:59,032 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 22:15:59,033 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 22:15:59,034 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 22:15:59,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 22:15:59,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 22:15:59,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 22:15:59,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 22:15:59,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 22:15:59,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 22:15:59,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 22:15:59,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 22:15:59,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 22:15:59,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 22:15:59,042 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 22:15:59,043 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-19 22:15:59,080 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 22:15:59,080 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 22:15:59,081 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 22:15:59,081 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 22:15:59,083 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 22:15:59,083 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 22:15:59,084 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 22:15:59,084 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 22:15:59,084 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 22:15:59,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 22:15:59,085 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 22:15:59,085 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 22:15:59,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 22:15:59,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 22:15:59,086 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 22:15:59,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 22:15:59,086 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 22:15:59,086 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 22:15:59,087 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 22:15:59,088 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 22:15:59,088 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 22:15:59,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 22:15:59,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 22:15:59,089 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 22:15:59,089 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 22:15:59,089 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 22:15:59,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 22:15:59,089 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 22:15:59,090 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 22:15:59,090 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 22:15:59,090 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71774aeec0d0f8840a1b18b633767b26c38c9eb9d26569d28cdf01c44c9881ac [2022-07-19 22:15:59,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 22:15:59,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 22:15:59,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 22:15:59,361 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 22:15:59,362 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 22:15:59,363 INFO L432 ainManager$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 [2022-07-19 22:15:59,431 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96bcca5a2/3da5cca7287b4df5919d040f89398f48/FLAG2aa509edf [2022-07-19 22:16:00,128 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 22:16:00,129 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_pop_harness.i [2022-07-19 22:16:00,158 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96bcca5a2/3da5cca7287b4df5919d040f89398f48/FLAG2aa509edf [2022-07-19 22:16:00,450 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96bcca5a2/3da5cca7287b4df5919d040f89398f48 [2022-07-19 22:16:00,453 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 22:16:00,454 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 22:16:00,457 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 22:16:00,458 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 22:16:00,460 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 22:16:00,461 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:16:00" (1/1) ... [2022-07-19 22:16:00,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34b15b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:16:00, skipping insertion in model container [2022-07-19 22:16:00,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:16:00" (1/1) ... [2022-07-19 22:16:00,469 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 22:16:00,558 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 22:16:00,786 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] [2022-07-19 22:16:00,794 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] [2022-07-19 22:16:01,477 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:01,478 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:01,478 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:01,479 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:01,484 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:01,496 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:01,497 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:01,498 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:01,499 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:01,500 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:01,501 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:01,502 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:01,502 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:01,733 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-19 22:16:01,734 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-19 22:16:01,735 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-19 22:16:01,735 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-19 22:16:01,736 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-19 22:16:01,737 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-19 22:16:01,738 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-19 22:16:01,738 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-19 22:16:01,739 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-19 22:16:01,739 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-19 22:16:01,887 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-19 22:16:01,924 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:01,937 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:01,995 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:01,995 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:01,996 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:01,997 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:01,997 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:01,997 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:01,998 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,001 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,001 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,002 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,002 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,003 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,003 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,011 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,014 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,015 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,015 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,019 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,020 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,029 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,030 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,030 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 22:16:02,076 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 22:16:02,098 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] [2022-07-19 22:16:02,100 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] [2022-07-19 22:16:02,162 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,175 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,176 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,176 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,177 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,181 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,182 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,182 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,183 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,183 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,184 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,204 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,204 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,232 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-19 22:16:02,233 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-19 22:16:02,233 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-19 22:16:02,234 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-19 22:16:02,234 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-19 22:16:02,235 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-19 22:16:02,236 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-19 22:16:02,236 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-19 22:16:02,236 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-19 22:16:02,237 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-19 22:16:02,255 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-19 22:16:02,275 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,279 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,304 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,304 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,304 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,305 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,305 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,306 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,306 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,307 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,307 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,307 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,307 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,308 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,308 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,309 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,310 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,310 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,311 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,314 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,314 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,322 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,323 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,323 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:16:02,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 22:16:02,519 INFO L208 MainTranslator]: Completed translation [2022-07-19 22:16:02,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:16:02 WrapperNode [2022-07-19 22:16:02,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 22:16:02,521 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 22:16:02,521 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 22:16:02,521 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 22:16:02,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:16:02" (1/1) ... [2022-07-19 22:16:02,623 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:16:02" (1/1) ... [2022-07-19 22:16:02,689 INFO L137 Inliner]: procedures = 697, calls = 1918, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 1033 [2022-07-19 22:16:02,690 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 22:16:02,691 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 22:16:02,691 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 22:16:02,691 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 22:16:02,708 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:16:02" (1/1) ... [2022-07-19 22:16:02,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:16:02" (1/1) ... [2022-07-19 22:16:02,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:16:02" (1/1) ... [2022-07-19 22:16:02,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:16:02" (1/1) ... [2022-07-19 22:16:02,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:16:02" (1/1) ... [2022-07-19 22:16:02,797 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:16:02" (1/1) ... [2022-07-19 22:16:02,808 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:16:02" (1/1) ... [2022-07-19 22:16:02,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 22:16:02,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 22:16:02,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 22:16:02,841 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 22:16:02,842 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:16:02" (1/1) ... [2022-07-19 22:16:02,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 22:16:02,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:16:02,873 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) [2022-07-19 22:16:02,895 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 [2022-07-19 22:16:02,929 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-07-19 22:16:02,929 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-07-19 22:16:02,930 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-07-19 22:16:02,930 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-07-19 22:16:02,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 22:16:02,930 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-07-19 22:16:02,930 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-07-19 22:16:02,930 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-07-19 22:16:02,930 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-07-19 22:16:02,931 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-07-19 22:16:02,931 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-07-19 22:16:02,931 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-07-19 22:16:02,931 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-07-19 22:16:02,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-19 22:16:02,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 22:16:02,932 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-07-19 22:16:02,932 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-07-19 22:16:02,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-19 22:16:02,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-19 22:16:02,933 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_node [2022-07-19 22:16:02,934 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_node [2022-07-19 22:16:02,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-19 22:16:02,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 22:16:02,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-19 22:16:02,937 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-07-19 22:16:02,938 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-07-19 22:16:02,938 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-07-19 22:16:02,938 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-07-19 22:16:02,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 22:16:02,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 22:16:02,943 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-07-19 22:16:02,944 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-07-19 22:16:02,944 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-07-19 22:16:02,944 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-07-19 22:16:02,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-19 22:16:02,944 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-07-19 22:16:02,944 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-07-19 22:16:02,944 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-07-19 22:16:02,945 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-07-19 22:16:02,945 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-07-19 22:16:02,945 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-07-19 22:16:02,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-19 22:16:02,945 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-19 22:16:02,945 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-19 22:16:02,945 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-19 22:16:02,946 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-07-19 22:16:02,946 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-07-19 22:16:02,946 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2022-07-19 22:16:02,946 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2022-07-19 22:16:02,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 22:16:02,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-19 22:16:02,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-19 22:16:02,946 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-07-19 22:16:02,947 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-07-19 22:16:02,947 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-07-19 22:16:02,947 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-07-19 22:16:02,947 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-07-19 22:16:02,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-07-19 22:16:02,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 22:16:02,948 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-07-19 22:16:02,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-07-19 22:16:02,948 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-07-19 22:16:02,949 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-07-19 22:16:02,949 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-19 22:16:02,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-19 22:16:02,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 22:16:02,949 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at [2022-07-19 22:16:02,949 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at [2022-07-19 22:16:03,310 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 22:16:03,312 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 22:16:04,956 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 22:16:04,965 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 22:16:04,965 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-07-19 22:16:04,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:16:04 BoogieIcfgContainer [2022-07-19 22:16:04,968 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 22:16:04,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 22:16:04,969 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 22:16:04,972 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 22:16:04,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 10:16:00" (1/3) ... [2022-07-19 22:16:04,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@907df8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:16:04, skipping insertion in model container [2022-07-19 22:16:04,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:16:02" (2/3) ... [2022-07-19 22:16:04,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@907df8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:16:04, skipping insertion in model container [2022-07-19 22:16:04,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:16:04" (3/3) ... [2022-07-19 22:16:04,975 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_pop_harness.i [2022-07-19 22:16:04,988 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 22:16:04,988 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-19 22:16:05,048 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 22:16:05,057 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@74824e53, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2bd21004 [2022-07-19 22:16:05,058 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-19 22:16:05,065 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) [2022-07-19 22:16:05,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-07-19 22:16:05,081 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:16:05,082 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] [2022-07-19 22:16:05,082 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:16:05,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:16:05,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1140837343, now seen corresponding path program 1 times [2022-07-19 22:16:05,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:16:05,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289706402] [2022-07-19 22:16:05,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:16:05,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:16:05,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:05,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 22:16:05,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:05,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 22:16:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:05,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 22:16:05,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:05,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-19 22:16:05,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:05,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 22:16:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:05,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-19 22:16:05,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:05,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 22:16:05,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:05,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 22:16:05,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:05,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-19 22:16:05,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:05,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-19 22:16:05,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:05,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-19 22:16:05,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:05,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-19 22:16:05,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:05,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:16:05,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:05,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-19 22:16:05,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:05,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-19 22:16:05,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:05,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-19 22:16:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:05,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-19 22:16:05,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:05,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-19 22:16:05,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:05,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-19 22:16:05,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:05,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-19 22:16:05,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:05,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-19 22:16:05,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:05,934 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2022-07-19 22:16:05,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:16:05,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289706402] [2022-07-19 22:16:05,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289706402] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:16:05,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:16:05,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 22:16:05,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853311246] [2022-07-19 22:16:05,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:16:05,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 22:16:05,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:16:05,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 22:16:05,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-07-19 22:16:05,980 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) [2022-07-19 22:16:07,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:16:07,786 INFO L93 Difference]: Finished difference Result 1063 states and 1806 transitions. [2022-07-19 22:16:07,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 22:16:07,789 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 [2022-07-19 22:16:07,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:16:07,820 INFO L225 Difference]: With dead ends: 1063 [2022-07-19 22:16:07,820 INFO L226 Difference]: Without dead ends: 621 [2022-07-19 22:16:07,831 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 [2022-07-19 22:16:07,834 INFO L413 NwaCegarLoop]: 690 mSDtfsCounter, 465 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 765 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 765 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-19 22:16:07,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 961 Invalid, 1122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [765 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-19 22:16:07,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2022-07-19 22:16:07,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 441. [2022-07-19 22:16:07,930 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) [2022-07-19 22:16:07,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 628 transitions. [2022-07-19 22:16:07,937 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 628 transitions. Word has length 133 [2022-07-19 22:16:07,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:16:07,937 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 628 transitions. [2022-07-19 22:16:07,938 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) [2022-07-19 22:16:07,938 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 628 transitions. [2022-07-19 22:16:07,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-07-19 22:16:07,941 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:16:07,942 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] [2022-07-19 22:16:07,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 22:16:07,942 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:16:07,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:16:07,943 INFO L85 PathProgramCache]: Analyzing trace with hash 826891299, now seen corresponding path program 1 times [2022-07-19 22:16:07,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:16:07,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35408456] [2022-07-19 22:16:07,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:16:07,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:16:08,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:08,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 22:16:08,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:08,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 22:16:08,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:08,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 22:16:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:08,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-19 22:16:08,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:08,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 22:16:08,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:08,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-19 22:16:08,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:08,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 22:16:08,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:08,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 22:16:08,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:08,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-19 22:16:08,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:08,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-19 22:16:08,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:08,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-19 22:16:08,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:08,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-19 22:16:08,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:08,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:16:08,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:08,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-19 22:16:08,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:08,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-19 22:16:08,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:08,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-19 22:16:08,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:08,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-19 22:16:08,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:08,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-19 22:16:08,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:08,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-19 22:16:08,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:08,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-19 22:16:08,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:08,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-19 22:16:08,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:08,439 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-07-19 22:16:08,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:16:08,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35408456] [2022-07-19 22:16:08,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35408456] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 22:16:08,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639679738] [2022-07-19 22:16:08,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:16:08,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:16:08,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:16:08,443 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) [2022-07-19 22:16:08,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-19 22:16:08,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:08,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 2444 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-19 22:16:08,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:16:09,138 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-07-19 22:16:09,138 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:16:09,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639679738] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:16:09,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 22:16:09,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-07-19 22:16:09,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388836947] [2022-07-19 22:16:09,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:16:09,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 22:16:09,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:16:09,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 22:16:09,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-19 22:16:09,142 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) [2022-07-19 22:16:11,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:16:11,014 INFO L93 Difference]: Finished difference Result 848 states and 1225 transitions. [2022-07-19 22:16:11,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 22:16:11,015 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 [2022-07-19 22:16:11,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:16:11,019 INFO L225 Difference]: With dead ends: 848 [2022-07-19 22:16:11,019 INFO L226 Difference]: Without dead ends: 443 [2022-07-19 22:16:11,022 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 [2022-07-19 22:16:11,023 INFO L413 NwaCegarLoop]: 568 mSDtfsCounter, 643 mSDsluCounter, 1621 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s 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, 1.8s IncrementalHoareTripleChecker+Time [2022-07-19 22:16:11,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 2189 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-19 22:16:11,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-07-19 22:16:11,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2022-07-19 22:16:11,049 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) [2022-07-19 22:16:11,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 642 transitions. [2022-07-19 22:16:11,054 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 642 transitions. Word has length 133 [2022-07-19 22:16:11,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:16:11,055 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 642 transitions. [2022-07-19 22:16:11,055 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) [2022-07-19 22:16:11,055 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 642 transitions. [2022-07-19 22:16:11,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-07-19 22:16:11,057 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:16:11,058 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] [2022-07-19 22:16:11,085 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-19 22:16:11,271 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 [2022-07-19 22:16:11,272 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:16:11,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:16:11,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1886231881, now seen corresponding path program 1 times [2022-07-19 22:16:11,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:16:11,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926695662] [2022-07-19 22:16:11,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:16:11,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:16:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:11,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 22:16:11,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:11,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 22:16:11,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:11,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 22:16:11,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:11,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-19 22:16:11,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:11,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 22:16:11,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:11,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-19 22:16:11,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:11,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 22:16:11,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:11,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 22:16:11,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:11,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-19 22:16:11,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:11,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-19 22:16:11,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:11,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 22:16:11,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:11,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-19 22:16:11,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:11,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-19 22:16:11,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:11,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:16:11,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:11,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 22:16:11,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:11,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-19 22:16:11,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:11,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-19 22:16:11,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:11,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-19 22:16:11,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:11,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-19 22:16:11,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:11,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-19 22:16:11,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:11,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-19 22:16:11,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:11,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-19 22:16:11,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:11,811 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2022-07-19 22:16:11,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:16:11,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926695662] [2022-07-19 22:16:11,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926695662] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 22:16:11,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613851581] [2022-07-19 22:16:11,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:16:11,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:16:11,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:16:11,813 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) [2022-07-19 22:16:11,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-19 22:16:12,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:12,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 2494 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-19 22:16:12,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:16:12,492 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-07-19 22:16:12,493 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:16:12,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613851581] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:16:12,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 22:16:12,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2022-07-19 22:16:12,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237449230] [2022-07-19 22:16:12,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:16:12,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 22:16:12,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:16:12,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 22:16:12,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2022-07-19 22:16:12,495 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) [2022-07-19 22:16:15,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:16:15,242 INFO L93 Difference]: Finished difference Result 871 states and 1296 transitions. [2022-07-19 22:16:15,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 22:16:15,243 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 [2022-07-19 22:16:15,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:16:15,247 INFO L225 Difference]: With dead ends: 871 [2022-07-19 22:16:15,247 INFO L226 Difference]: Without dead ends: 464 [2022-07-19 22:16:15,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-07-19 22:16:15,250 INFO L413 NwaCegarLoop]: 565 mSDtfsCounter, 667 mSDsluCounter, 2664 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s 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, 2.6s IncrementalHoareTripleChecker+Time [2022-07-19 22:16:15,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [717 Valid, 3229 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-19 22:16:15,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-07-19 22:16:15,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 462. [2022-07-19 22:16:15,276 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) [2022-07-19 22:16:15,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 685 transitions. [2022-07-19 22:16:15,282 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 685 transitions. Word has length 141 [2022-07-19 22:16:15,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:16:15,283 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 685 transitions. [2022-07-19 22:16:15,283 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) [2022-07-19 22:16:15,283 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 685 transitions. [2022-07-19 22:16:15,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-19 22:16:15,285 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:16:15,286 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] [2022-07-19 22:16:15,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-19 22:16:15,502 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 [2022-07-19 22:16:15,503 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:16:15,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:16:15,503 INFO L85 PathProgramCache]: Analyzing trace with hash -523305437, now seen corresponding path program 1 times [2022-07-19 22:16:15,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:16:15,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957715695] [2022-07-19 22:16:15,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:16:15,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:16:15,584 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:16:15,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1747595743] [2022-07-19 22:16:15,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:16:15,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:16:15,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:16:15,586 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) [2022-07-19 22:16:15,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-19 22:16:16,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:16,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 2635 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-19 22:16:16,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:16:16,230 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-07-19 22:16:16,231 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:16:16,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:16:16,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957715695] [2022-07-19 22:16:16,231 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:16:16,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747595743] [2022-07-19 22:16:16,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747595743] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:16:16,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:16:16,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 22:16:16,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644247603] [2022-07-19 22:16:16,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:16:16,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 22:16:16,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:16:16,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 22:16:16,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 22:16:16,234 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) [2022-07-19 22:16:18,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:16:18,580 INFO L93 Difference]: Finished difference Result 896 states and 1369 transitions. [2022-07-19 22:16:18,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 22:16:18,581 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 [2022-07-19 22:16:18,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:16:18,585 INFO L225 Difference]: With dead ends: 896 [2022-07-19 22:16:18,585 INFO L226 Difference]: Without dead ends: 470 [2022-07-19 22:16:18,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-07-19 22:16:18,589 INFO L413 NwaCegarLoop]: 562 mSDtfsCounter, 667 mSDsluCounter, 2131 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s 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, 2.2s IncrementalHoareTripleChecker+Time [2022-07-19 22:16:18,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 2693 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-19 22:16:18,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2022-07-19 22:16:18,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 462. [2022-07-19 22:16:18,610 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) [2022-07-19 22:16:18,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 685 transitions. [2022-07-19 22:16:18,616 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 685 transitions. Word has length 156 [2022-07-19 22:16:18,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:16:18,616 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 685 transitions. [2022-07-19 22:16:18,617 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) [2022-07-19 22:16:18,617 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 685 transitions. [2022-07-19 22:16:18,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-07-19 22:16:18,619 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:16:18,619 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] [2022-07-19 22:16:18,651 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-19 22:16:18,848 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 [2022-07-19 22:16:18,848 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:16:18,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:16:18,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1664024204, now seen corresponding path program 1 times [2022-07-19 22:16:18,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:16:18,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910422399] [2022-07-19 22:16:18,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:16:18,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:16:18,972 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:16:18,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [770334323] [2022-07-19 22:16:18,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:16:18,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:16:18,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:16:18,974 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) [2022-07-19 22:16:18,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-19 22:16:19,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:19,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 2707 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-19 22:16:19,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:16:19,697 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-07-19 22:16:19,697 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:16:19,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:16:19,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910422399] [2022-07-19 22:16:19,698 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:16:19,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770334323] [2022-07-19 22:16:19,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770334323] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:16:19,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:16:19,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-19 22:16:19,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536994462] [2022-07-19 22:16:19,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:16:19,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 22:16:19,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:16:19,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 22:16:19,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 22:16:19,701 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) [2022-07-19 22:16:22,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:16:22,630 INFO L93 Difference]: Finished difference Result 906 states and 1373 transitions. [2022-07-19 22:16:22,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 22:16:22,631 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 [2022-07-19 22:16:22,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:16:22,636 INFO L225 Difference]: With dead ends: 906 [2022-07-19 22:16:22,636 INFO L226 Difference]: Without dead ends: 480 [2022-07-19 22:16:22,639 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 [2022-07-19 22:16:22,640 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 [2022-07-19 22:16:22,641 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] [2022-07-19 22:16:22,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-07-19 22:16:22,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 462. [2022-07-19 22:16:22,661 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) [2022-07-19 22:16:22,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 685 transitions. [2022-07-19 22:16:22,666 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 685 transitions. Word has length 172 [2022-07-19 22:16:22,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:16:22,666 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 685 transitions. [2022-07-19 22:16:22,666 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) [2022-07-19 22:16:22,667 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 685 transitions. [2022-07-19 22:16:22,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-19 22:16:22,669 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:16:22,669 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] [2022-07-19 22:16:22,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-19 22:16:22,895 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 [2022-07-19 22:16:22,895 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:16:22,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:16:22,896 INFO L85 PathProgramCache]: Analyzing trace with hash -294824304, now seen corresponding path program 2 times [2022-07-19 22:16:22,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:16:22,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502721941] [2022-07-19 22:16:22,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:16:22,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:16:22,991 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:16:22,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1811913076] [2022-07-19 22:16:22,992 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-19 22:16:22,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:16:22,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:16:22,994 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) [2022-07-19 22:16:22,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-19 22:16:23,622 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-19 22:16:23,623 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 22:16:23,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 2848 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-19 22:16:23,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:16:23,708 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-07-19 22:16:23,709 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:16:23,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:16:23,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502721941] [2022-07-19 22:16:23,709 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:16:23,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811913076] [2022-07-19 22:16:23,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811913076] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:16:23,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:16:23,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 22:16:23,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085973249] [2022-07-19 22:16:23,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:16:23,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 22:16:23,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:16:23,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 22:16:23,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 22:16:23,712 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) [2022-07-19 22:16:26,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:16:26,352 INFO L93 Difference]: Finished difference Result 858 states and 1293 transitions. [2022-07-19 22:16:26,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 22:16:26,353 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 [2022-07-19 22:16:26,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:16:26,358 INFO L225 Difference]: With dead ends: 858 [2022-07-19 22:16:26,358 INFO L226 Difference]: Without dead ends: 464 [2022-07-19 22:16:26,361 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 [2022-07-19 22:16:26,362 INFO L413 NwaCegarLoop]: 567 mSDtfsCounter, 655 mSDsluCounter, 2158 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s 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, 2.6s IncrementalHoareTripleChecker+Time [2022-07-19 22:16:26,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [677 Valid, 2725 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-19 22:16:26,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-07-19 22:16:26,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2022-07-19 22:16:26,382 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) [2022-07-19 22:16:26,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 697 transitions. [2022-07-19 22:16:26,386 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 697 transitions. Word has length 187 [2022-07-19 22:16:26,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:16:26,387 INFO L495 AbstractCegarLoop]: Abstraction has 464 states and 697 transitions. [2022-07-19 22:16:26,387 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) [2022-07-19 22:16:26,388 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 697 transitions. [2022-07-19 22:16:26,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-07-19 22:16:26,390 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:16:26,390 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] [2022-07-19 22:16:26,424 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-19 22:16:26,605 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 [2022-07-19 22:16:26,605 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:16:26,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:16:26,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1770519646, now seen corresponding path program 1 times [2022-07-19 22:16:26,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:16:26,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967896354] [2022-07-19 22:16:26,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:16:26,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:16:26,694 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:16:26,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1656412940] [2022-07-19 22:16:26,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:16:26,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:16:26,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:16:26,697 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) [2022-07-19 22:16:26,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-19 22:16:27,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:27,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 3039 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-19 22:16:27,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:16:27,462 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2022-07-19 22:16:27,463 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:16:27,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:16:27,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967896354] [2022-07-19 22:16:27,463 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:16:27,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656412940] [2022-07-19 22:16:27,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656412940] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:16:27,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:16:27,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 22:16:27,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864601564] [2022-07-19 22:16:27,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:16:27,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 22:16:27,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:16:27,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 22:16:27,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-19 22:16:27,466 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) [2022-07-19 22:16:30,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:16:30,058 INFO L93 Difference]: Finished difference Result 863 states and 1318 transitions. [2022-07-19 22:16:30,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 22:16:30,058 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 [2022-07-19 22:16:30,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:16:30,062 INFO L225 Difference]: With dead ends: 863 [2022-07-19 22:16:30,062 INFO L226 Difference]: Without dead ends: 467 [2022-07-19 22:16:30,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-07-19 22:16:30,066 INFO L413 NwaCegarLoop]: 561 mSDtfsCounter, 679 mSDsluCounter, 2657 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.5s IncrementalHoareTripleChecker+Time [2022-07-19 22:16:30,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [701 Valid, 3218 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-19 22:16:30,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-07-19 22:16:30,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 465. [2022-07-19 22:16:30,084 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) [2022-07-19 22:16:30,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 698 transitions. [2022-07-19 22:16:30,088 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 698 transitions. Word has length 210 [2022-07-19 22:16:30,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:16:30,088 INFO L495 AbstractCegarLoop]: Abstraction has 465 states and 698 transitions. [2022-07-19 22:16:30,088 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) [2022-07-19 22:16:30,089 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 698 transitions. [2022-07-19 22:16:30,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-07-19 22:16:30,091 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:16:30,091 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] [2022-07-19 22:16:30,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-19 22:16:30,320 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 [2022-07-19 22:16:30,320 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:16:30,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:16:30,321 INFO L85 PathProgramCache]: Analyzing trace with hash -236319775, now seen corresponding path program 1 times [2022-07-19 22:16:30,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:16:30,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57872922] [2022-07-19 22:16:30,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:16:30,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:16:30,409 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:16:30,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [710661359] [2022-07-19 22:16:30,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:16:30,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:16:30,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:16:30,412 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) [2022-07-19 22:16:30,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-19 22:16:31,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:31,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 2970 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-19 22:16:31,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:16:31,143 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 137 proven. 3 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-07-19 22:16:31,143 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 22:16:31,441 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2022-07-19 22:16:31,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:16:31,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57872922] [2022-07-19 22:16:31,442 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:16:31,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710661359] [2022-07-19 22:16:31,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710661359] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 22:16:31,442 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-19 22:16:31,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2022-07-19 22:16:31,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654418285] [2022-07-19 22:16:31,443 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-19 22:16:31,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-19 22:16:31,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:16:31,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-19 22:16:31,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-19 22:16:31,444 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) [2022-07-19 22:16:32,839 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 22:16:35,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:16:35,809 INFO L93 Difference]: Finished difference Result 881 states and 1352 transitions. [2022-07-19 22:16:35,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 22:16:35,810 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 [2022-07-19 22:16:35,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:16:35,813 INFO L225 Difference]: With dead ends: 881 [2022-07-19 22:16:35,814 INFO L226 Difference]: Without dead ends: 484 [2022-07-19 22:16:35,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2022-07-19 22:16:35,817 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 1085 mSDsluCounter, 4137 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 441 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1135 SdHoareTripleChecker+Valid, 4683 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 441 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-07-19 22:16:35,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1135 Valid, 4683 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [441 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-07-19 22:16:35,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2022-07-19 22:16:35,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 478. [2022-07-19 22:16:35,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 288 states have (on average 1.25) internal successors, (360), 292 states have internal predecessors, (360), 159 states have call successors, (159), 27 states have call predecessors, (159), 29 states have return successors, (198), 159 states have call predecessors, (198), 157 states have call successors, (198) [2022-07-19 22:16:35,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 717 transitions. [2022-07-19 22:16:35,840 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 717 transitions. Word has length 211 [2022-07-19 22:16:35,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:16:35,841 INFO L495 AbstractCegarLoop]: Abstraction has 478 states and 717 transitions. [2022-07-19 22:16:35,841 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) [2022-07-19 22:16:35,841 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 717 transitions. [2022-07-19 22:16:35,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-07-19 22:16:35,844 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:16:35,844 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] [2022-07-19 22:16:35,877 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-07-19 22:16:36,071 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 [2022-07-19 22:16:36,072 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:16:36,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:16:36,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1051846891, now seen corresponding path program 2 times [2022-07-19 22:16:36,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:16:36,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19265253] [2022-07-19 22:16:36,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:16:36,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:16:36,148 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:16:36,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1836803313] [2022-07-19 22:16:36,149 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-19 22:16:36,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:16:36,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:16:36,150 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) [2022-07-19 22:16:36,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-19 22:16:37,072 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-19 22:16:37,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 22:16:37,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 3111 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-19 22:16:37,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:16:37,192 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-07-19 22:16:37,192 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:16:37,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:16:37,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19265253] [2022-07-19 22:16:37,193 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:16:37,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836803313] [2022-07-19 22:16:37,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836803313] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:16:37,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:16:37,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-19 22:16:37,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972428508] [2022-07-19 22:16:37,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:16:37,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-19 22:16:37,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:16:37,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-19 22:16:37,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-19 22:16:37,195 INFO L87 Difference]: Start difference. First operand 478 states and 717 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) [2022-07-19 22:16:38,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 22:16:40,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:16:40,884 INFO L93 Difference]: Finished difference Result 890 states and 1355 transitions. [2022-07-19 22:16:40,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 22:16:40,884 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 [2022-07-19 22:16:40,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:16:40,889 INFO L225 Difference]: With dead ends: 890 [2022-07-19 22:16:40,890 INFO L226 Difference]: Without dead ends: 480 [2022-07-19 22:16:40,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-07-19 22:16:40,895 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 744 mSDsluCounter, 3578 mSDsCounter, 0 mSdLazyCounter, 851 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 4118 SdHoareTripleChecker+Invalid, 933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-07-19 22:16:40,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 4118 Invalid, 933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 851 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-07-19 22:16:40,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-07-19 22:16:40,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 462. [2022-07-19 22:16:40,918 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, (184), 157 states have call predecessors, (184), 156 states have call successors, (184) [2022-07-19 22:16:40,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 683 transitions. [2022-07-19 22:16:40,924 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 683 transitions. Word has length 226 [2022-07-19 22:16:40,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:16:40,927 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 683 transitions. [2022-07-19 22:16:40,928 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) [2022-07-19 22:16:40,928 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 683 transitions. [2022-07-19 22:16:40,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-07-19 22:16:40,931 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:16:40,931 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] [2022-07-19 22:16:40,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-19 22:16:41,155 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 [2022-07-19 22:16:41,155 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:16:41,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:16:41,156 INFO L85 PathProgramCache]: Analyzing trace with hash 664794371, now seen corresponding path program 3 times [2022-07-19 22:16:41,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:16:41,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450485748] [2022-07-19 22:16:41,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:16:41,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:16:41,263 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:16:41,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [419222312] [2022-07-19 22:16:41,263 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-19 22:16:41,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:16:41,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:16:41,268 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) [2022-07-19 22:16:41,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-19 22:16:42,045 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-19 22:16:42,046 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 22:16:42,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 1889 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-19 22:16:42,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:16:42,096 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2022-07-19 22:16:42,097 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:16:42,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:16:42,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450485748] [2022-07-19 22:16:42,097 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:16:42,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419222312] [2022-07-19 22:16:42,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419222312] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:16:42,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:16:42,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 22:16:42,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872672417] [2022-07-19 22:16:42,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:16:42,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 22:16:42,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:16:42,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 22:16:42,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 22:16:42,100 INFO L87 Difference]: Start difference. First operand 462 states and 683 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) [2022-07-19 22:16:42,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:16:42,354 INFO L93 Difference]: Finished difference Result 851 states and 1291 transitions. [2022-07-19 22:16:42,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 22:16:42,354 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 [2022-07-19 22:16:42,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:16:42,357 INFO L225 Difference]: With dead ends: 851 [2022-07-19 22:16:42,358 INFO L226 Difference]: Without dead ends: 462 [2022-07-19 22:16:42,360 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 [2022-07-19 22:16:42,361 INFO L413 NwaCegarLoop]: 591 mSDtfsCounter, 2 mSDsluCounter, 2267 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2858 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 [2022-07-19 22:16:42,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2858 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 22:16:42,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2022-07-19 22:16:42,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 462. [2022-07-19 22:16:42,379 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, (183), 157 states have call predecessors, (183), 156 states have call successors, (183) [2022-07-19 22:16:42,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 682 transitions. [2022-07-19 22:16:42,381 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 682 transitions. Word has length 241 [2022-07-19 22:16:42,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:16:42,382 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 682 transitions. [2022-07-19 22:16:42,382 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) [2022-07-19 22:16:42,382 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 682 transitions. [2022-07-19 22:16:42,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-07-19 22:16:42,385 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:16:42,385 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] [2022-07-19 22:16:42,413 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-07-19 22:16:42,611 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 [2022-07-19 22:16:42,611 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:16:42,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:16:42,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1662762273, now seen corresponding path program 4 times [2022-07-19 22:16:42,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:16:42,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126699813] [2022-07-19 22:16:42,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:16:42,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:16:42,721 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:16:42,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [793943032] [2022-07-19 22:16:42,722 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-19 22:16:42,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:16:42,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:16:42,724 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) [2022-07-19 22:16:42,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-19 22:16:43,364 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-19 22:16:43,365 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 22:16:43,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 3393 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-19 22:16:43,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:16:43,479 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2022-07-19 22:16:43,479 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:16:43,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:16:43,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126699813] [2022-07-19 22:16:43,480 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:16:43,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793943032] [2022-07-19 22:16:43,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793943032] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:16:43,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:16:43,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 22:16:43,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521973459] [2022-07-19 22:16:43,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:16:43,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 22:16:43,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:16:43,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 22:16:43,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-19 22:16:43,482 INFO L87 Difference]: Start difference. First operand 462 states and 682 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) [2022-07-19 22:16:45,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:16:45,545 INFO L93 Difference]: Finished difference Result 862 states and 1283 transitions. [2022-07-19 22:16:45,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 22:16:45,545 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 [2022-07-19 22:16:45,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:16:45,564 INFO L225 Difference]: With dead ends: 862 [2022-07-19 22:16:45,564 INFO L226 Difference]: Without dead ends: 474 [2022-07-19 22:16:45,566 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 [2022-07-19 22:16:45,566 INFO L413 NwaCegarLoop]: 591 mSDtfsCounter, 64 mSDsluCounter, 3381 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 3972 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-19 22:16:45,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 3972 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-19 22:16:45,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-07-19 22:16:45,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 474. [2022-07-19 22:16:45,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 280 states have (on average 1.2428571428571429) internal successors, (348), 284 states have internal predecessors, (348), 163 states have call successors, (163), 28 states have call predecessors, (163), 29 states have return successors, (188), 162 states have call predecessors, (188), 161 states have call successors, (188) [2022-07-19 22:16:45,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 699 transitions. [2022-07-19 22:16:45,601 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 699 transitions. Word has length 256 [2022-07-19 22:16:45,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:16:45,601 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 699 transitions. [2022-07-19 22:16:45,601 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) [2022-07-19 22:16:45,601 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 699 transitions. [2022-07-19 22:16:45,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2022-07-19 22:16:45,603 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:16:45,603 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] [2022-07-19 22:16:45,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-19 22:16:45,823 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 [2022-07-19 22:16:45,823 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:16:45,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:16:45,824 INFO L85 PathProgramCache]: Analyzing trace with hash -350828385, now seen corresponding path program 1 times [2022-07-19 22:16:45,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:16:45,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394529080] [2022-07-19 22:16:45,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:16:45,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:16:45,903 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:16:45,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [264418972] [2022-07-19 22:16:45,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:16:45,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:16:45,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:16:45,905 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) [2022-07-19 22:16:45,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-19 22:16:46,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:46,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 3534 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-19 22:16:46,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:16:46,732 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 236 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2022-07-19 22:16:46,732 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:16:46,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:16:46,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394529080] [2022-07-19 22:16:46,732 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:16:46,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264418972] [2022-07-19 22:16:46,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [264418972] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:16:46,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:16:46,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 22:16:46,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850790673] [2022-07-19 22:16:46,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:16:46,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 22:16:46,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:16:46,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 22:16:46,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 22:16:46,735 INFO L87 Difference]: Start difference. First operand 474 states and 699 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) [2022-07-19 22:16:48,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:16:48,792 INFO L93 Difference]: Finished difference Result 948 states and 1454 transitions. [2022-07-19 22:16:48,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 22:16:48,792 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 [2022-07-19 22:16:48,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:16:48,796 INFO L225 Difference]: With dead ends: 948 [2022-07-19 22:16:48,796 INFO L226 Difference]: Without dead ends: 510 [2022-07-19 22:16:48,799 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 [2022-07-19 22:16:48,799 INFO L413 NwaCegarLoop]: 635 mSDtfsCounter, 21 mSDsluCounter, 2316 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2951 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-19 22:16:48,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2951 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-19 22:16:48,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2022-07-19 22:16:48,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 482. [2022-07-19 22:16:48,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 288 states have (on average 1.2430555555555556) internal successors, (358), 292 states have internal predecessors, (358), 163 states have call successors, (163), 28 states have call predecessors, (163), 29 states have return successors, (188), 162 states have call predecessors, (188), 161 states have call successors, (188) [2022-07-19 22:16:48,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 709 transitions. [2022-07-19 22:16:48,822 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 709 transitions. Word has length 271 [2022-07-19 22:16:48,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:16:48,822 INFO L495 AbstractCegarLoop]: Abstraction has 482 states and 709 transitions. [2022-07-19 22:16:48,823 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) [2022-07-19 22:16:48,823 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 709 transitions. [2022-07-19 22:16:48,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2022-07-19 22:16:48,824 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:16:48,825 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] [2022-07-19 22:16:48,855 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-19 22:16:49,049 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 [2022-07-19 22:16:49,050 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:16:49,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:16:49,050 INFO L85 PathProgramCache]: Analyzing trace with hash -899887649, now seen corresponding path program 1 times [2022-07-19 22:16:49,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:16:49,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23296671] [2022-07-19 22:16:49,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:16:49,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:16:49,133 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:16:49,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1489620623] [2022-07-19 22:16:49,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:16:49,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:16:49,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:16:49,136 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) [2022-07-19 22:16:49,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-19 22:16:49,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:49,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 3528 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 22:16:49,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:16:49,959 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 238 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2022-07-19 22:16:49,959 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:16:49,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:16:49,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23296671] [2022-07-19 22:16:49,960 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:16:49,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489620623] [2022-07-19 22:16:49,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489620623] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:16:49,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:16:49,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 22:16:49,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008711383] [2022-07-19 22:16:49,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:16:49,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 22:16:49,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:16:49,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 22:16:49,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 22:16:49,962 INFO L87 Difference]: Start difference. First operand 482 states and 709 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) [2022-07-19 22:16:49,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:16:49,999 INFO L93 Difference]: Finished difference Result 936 states and 1412 transitions. [2022-07-19 22:16:50,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 22:16:50,000 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 [2022-07-19 22:16:50,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:16:50,004 INFO L225 Difference]: With dead ends: 936 [2022-07-19 22:16:50,004 INFO L226 Difference]: Without dead ends: 490 [2022-07-19 22:16:50,006 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 [2022-07-19 22:16:50,007 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 [2022-07-19 22:16:50,007 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] [2022-07-19 22:16:50,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2022-07-19 22:16:50,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 486. [2022-07-19 22:16:50,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 292 states have (on average 1.2397260273972603) internal successors, (362), 296 states have internal predecessors, (362), 163 states have call successors, (163), 28 states have call predecessors, (163), 29 states have return successors, (188), 162 states have call predecessors, (188), 161 states have call successors, (188) [2022-07-19 22:16:50,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 713 transitions. [2022-07-19 22:16:50,029 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 713 transitions. Word has length 271 [2022-07-19 22:16:50,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:16:50,029 INFO L495 AbstractCegarLoop]: Abstraction has 486 states and 713 transitions. [2022-07-19 22:16:50,029 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) [2022-07-19 22:16:50,030 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 713 transitions. [2022-07-19 22:16:50,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2022-07-19 22:16:50,031 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:16:50,031 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] [2022-07-19 22:16:50,065 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-19 22:16:50,255 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 [2022-07-19 22:16:50,255 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:16:50,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:16:50,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1910711071, now seen corresponding path program 1 times [2022-07-19 22:16:50,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:16:50,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464815967] [2022-07-19 22:16:50,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:16:50,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:16:50,347 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:16:50,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [484890908] [2022-07-19 22:16:50,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:16:50,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:16:50,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:16:50,349 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) [2022-07-19 22:16:50,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-19 22:16:51,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:51,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 3518 conjuncts, 26 conjunts are in the unsatisfiable core [2022-07-19 22:16:51,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:16:51,235 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-07-19 22:16:51,236 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:16:51,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:16:51,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464815967] [2022-07-19 22:16:51,236 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:16:51,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484890908] [2022-07-19 22:16:51,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484890908] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:16:51,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:16:51,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 22:16:51,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568600505] [2022-07-19 22:16:51,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:16:51,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 22:16:51,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:16:51,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 22:16:51,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-19 22:16:51,241 INFO L87 Difference]: Start difference. First operand 486 states and 713 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) [2022-07-19 22:16:54,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:16:54,244 INFO L93 Difference]: Finished difference Result 943 states and 1400 transitions. [2022-07-19 22:16:54,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 22:16:54,244 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 [2022-07-19 22:16:54,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:16:54,261 INFO L225 Difference]: With dead ends: 943 [2022-07-19 22:16:54,261 INFO L226 Difference]: Without dead ends: 528 [2022-07-19 22:16:54,263 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 [2022-07-19 22:16:54,264 INFO L413 NwaCegarLoop]: 653 mSDtfsCounter, 42 mSDsluCounter, 3850 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 4503 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-07-19 22:16:54,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 4503 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-07-19 22:16:54,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2022-07-19 22:16:54,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 505. [2022-07-19 22:16:54,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 305 states have (on average 1.2426229508196722) internal successors, (379), 309 states have internal predecessors, (379), 168 states have call successors, (168), 28 states have call predecessors, (168), 30 states have return successors, (198), 168 states have call predecessors, (198), 166 states have call successors, (198) [2022-07-19 22:16:54,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 745 transitions. [2022-07-19 22:16:54,289 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 745 transitions. Word has length 271 [2022-07-19 22:16:54,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:16:54,289 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 745 transitions. [2022-07-19 22:16:54,290 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) [2022-07-19 22:16:54,290 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 745 transitions. [2022-07-19 22:16:54,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2022-07-19 22:16:54,291 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:16:54,292 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] [2022-07-19 22:16:54,322 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-07-19 22:16:54,507 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 [2022-07-19 22:16:54,507 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:16:54,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:16:54,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1178743645, now seen corresponding path program 1 times [2022-07-19 22:16:54,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:16:54,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454421036] [2022-07-19 22:16:54,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:16:54,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:16:54,585 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:16:54,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1889312639] [2022-07-19 22:16:54,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:16:54,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:16:54,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:16:54,588 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) [2022-07-19 22:16:54,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-19 22:16:55,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:55,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 3515 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-19 22:16:55,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:16:55,496 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-07-19 22:16:55,497 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:16:55,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:16:55,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454421036] [2022-07-19 22:16:55,497 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:16:55,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889312639] [2022-07-19 22:16:55,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889312639] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:16:55,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:16:55,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 22:16:55,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816989432] [2022-07-19 22:16:55,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:16:55,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 22:16:55,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:16:55,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 22:16:55,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 22:16:55,500 INFO L87 Difference]: Start difference. First operand 505 states and 745 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 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) [2022-07-19 22:16:55,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:16:55,852 INFO L93 Difference]: Finished difference Result 953 states and 1415 transitions. [2022-07-19 22:16:55,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 22:16:55,853 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 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 271 [2022-07-19 22:16:55,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:16:55,857 INFO L225 Difference]: With dead ends: 953 [2022-07-19 22:16:55,857 INFO L226 Difference]: Without dead ends: 532 [2022-07-19 22:16:55,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-07-19 22:16:55,860 INFO L413 NwaCegarLoop]: 649 mSDtfsCounter, 31 mSDsluCounter, 2525 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 3174 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 22:16:55,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 3174 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 22:16:55,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2022-07-19 22:16:55,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 511. [2022-07-19 22:16:55,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 308 states have (on average 1.2370129870129871) internal successors, (381), 312 states have internal predecessors, (381), 171 states have call successors, (171), 28 states have call predecessors, (171), 30 states have return successors, (201), 171 states have call predecessors, (201), 169 states have call successors, (201) [2022-07-19 22:16:55,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 753 transitions. [2022-07-19 22:16:55,885 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 753 transitions. Word has length 271 [2022-07-19 22:16:55,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:16:55,885 INFO L495 AbstractCegarLoop]: Abstraction has 511 states and 753 transitions. [2022-07-19 22:16:55,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 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) [2022-07-19 22:16:55,886 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 753 transitions. [2022-07-19 22:16:55,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2022-07-19 22:16:55,887 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:16:55,888 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] [2022-07-19 22:16:55,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-19 22:16:56,107 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 [2022-07-19 22:16:56,108 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:16:56,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:16:56,108 INFO L85 PathProgramCache]: Analyzing trace with hash -957139557, now seen corresponding path program 1 times [2022-07-19 22:16:56,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:16:56,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324834906] [2022-07-19 22:16:56,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:16:56,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:16:56,183 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:16:56,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2138584539] [2022-07-19 22:16:56,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:16:56,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:16:56,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:16:56,185 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) [2022-07-19 22:16:56,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-19 22:16:56,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:56,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 3512 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-19 22:16:56,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:16:56,993 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2022-07-19 22:16:56,993 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:16:56,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:16:56,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324834906] [2022-07-19 22:16:56,994 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:16:56,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138584539] [2022-07-19 22:16:56,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138584539] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:16:56,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:16:56,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 22:16:56,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41694644] [2022-07-19 22:16:56,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:16:56,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 22:16:56,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:16:56,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 22:16:56,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 22:16:56,996 INFO L87 Difference]: Start difference. First operand 511 states and 753 transitions. Second operand has 5 states, 4 states have (on average 27.75) internal successors, (111), 5 states have internal predecessors, (111), 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) [2022-07-19 22:16:57,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:16:57,986 INFO L93 Difference]: Finished difference Result 926 states and 1371 transitions. [2022-07-19 22:16:57,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 22:16:57,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 27.75) internal successors, (111), 5 states have internal predecessors, (111), 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 271 [2022-07-19 22:16:57,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:16:57,991 INFO L225 Difference]: With dead ends: 926 [2022-07-19 22:16:57,991 INFO L226 Difference]: Without dead ends: 489 [2022-07-19 22:16:57,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-19 22:16:57,994 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 2 mSDsluCounter, 1688 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 22:16:57,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2278 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 22:16:57,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2022-07-19 22:16:58,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 489. [2022-07-19 22:16:58,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 294 states have (on average 1.2312925170068028) internal successors, (362), 299 states have internal predecessors, (362), 163 states have call successors, (163), 28 states have call predecessors, (163), 30 states have return successors, (190), 162 states have call predecessors, (190), 161 states have call successors, (190) [2022-07-19 22:16:58,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 715 transitions. [2022-07-19 22:16:58,017 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 715 transitions. Word has length 271 [2022-07-19 22:16:58,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:16:58,017 INFO L495 AbstractCegarLoop]: Abstraction has 489 states and 715 transitions. [2022-07-19 22:16:58,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 27.75) internal successors, (111), 5 states have internal predecessors, (111), 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) [2022-07-19 22:16:58,018 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 715 transitions. [2022-07-19 22:16:58,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-07-19 22:16:58,019 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:16:58,020 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] [2022-07-19 22:16:58,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-19 22:16:58,239 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 [2022-07-19 22:16:58,239 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:16:58,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:16:58,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1871546181, now seen corresponding path program 1 times [2022-07-19 22:16:58,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:16:58,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814123039] [2022-07-19 22:16:58,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:16:58,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:16:58,324 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:16:58,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1024875568] [2022-07-19 22:16:58,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:16:58,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:16:58,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:16:58,326 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) [2022-07-19 22:16:58,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-19 22:16:59,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:16:59,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 3553 conjuncts, 105 conjunts are in the unsatisfiable core [2022-07-19 22:16:59,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:16:59,650 INFO L356 Elim1Store]: treesize reduction 72, result has 11.1 percent of original size [2022-07-19 22:16:59,651 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 80 treesize of output 95 [2022-07-19 22:16:59,662 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 22:16:59,671 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 138 [2022-07-19 22:16:59,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 22:16:59,696 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2022-07-19 22:16:59,769 INFO L356 Elim1Store]: treesize reduction 16, result has 46.7 percent of original size [2022-07-19 22:16:59,769 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 155 treesize of output 144 [2022-07-19 22:16:59,799 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 31 [2022-07-19 22:17:00,504 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5441 (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_5441))) is different from true [2022-07-19 22:17:00,625 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5442 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5442) |c_#memory_int|)) is different from true [2022-07-19 22:17:00,951 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 378 proven. 2 refuted. 0 times theorem prover too weak. 103 trivial. 17 not checked. [2022-07-19 22:17:00,951 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 22:17:01,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:17:01,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814123039] [2022-07-19 22:17:01,370 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:17:01,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024875568] [2022-07-19 22:17:01,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024875568] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 22:17:01,371 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-19 22:17:01,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2022-07-19 22:17:01,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735170343] [2022-07-19 22:17:01,371 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-19 22:17:01,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-07-19 22:17:01,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:17:01,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-07-19 22:17:01,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=698, Unknown=28, NotChecked=110, Total=930 [2022-07-19 22:17:01,373 INFO L87 Difference]: Start difference. First operand 489 states and 715 transitions. Second operand has 26 states, 25 states have (on average 5.96) internal successors, (149), 24 states have internal predecessors, (149), 14 states have call successors, (35), 5 states have call predecessors, (35), 9 states have return successors, (33), 14 states have call predecessors, (33), 14 states have call successors, (33) [2022-07-19 22:17:01,720 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_5442 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5442) |c_#memory_int|)) (exists ((v_ArrVal_5441 (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_5441)))) is different from true [2022-07-19 22:17:07,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:17:07,700 INFO L93 Difference]: Finished difference Result 1231 states and 1947 transitions. [2022-07-19 22:17:07,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-07-19 22:17:07,701 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 5.96) internal successors, (149), 24 states have internal predecessors, (149), 14 states have call successors, (35), 5 states have call predecessors, (35), 9 states have return successors, (33), 14 states have call predecessors, (33), 14 states have call successors, (33) Word has length 282 [2022-07-19 22:17:07,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:17:07,707 INFO L225 Difference]: With dead ends: 1231 [2022-07-19 22:17:07,707 INFO L226 Difference]: Without dead ends: 773 [2022-07-19 22:17:07,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 346 SyntacticMatches, 7 SemanticMatches, 37 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=144, Invalid=1086, Unknown=42, NotChecked=210, Total=1482 [2022-07-19 22:17:07,711 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 315 mSDsluCounter, 4940 mSDsCounter, 0 mSdLazyCounter, 3287 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 5549 SdHoareTripleChecker+Invalid, 9693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 3287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6176 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-07-19 22:17:07,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 5549 Invalid, 9693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 3287 Invalid, 0 Unknown, 6176 Unchecked, 5.3s Time] [2022-07-19 22:17:07,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2022-07-19 22:17:07,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 574. [2022-07-19 22:17:07,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 361 states have (on average 1.2271468144044322) internal successors, (443), 367 states have internal predecessors, (443), 171 states have call successors, (171), 34 states have call predecessors, (171), 40 states have return successors, (255), 173 states have call predecessors, (255), 169 states have call successors, (255) [2022-07-19 22:17:07,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 869 transitions. [2022-07-19 22:17:07,750 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 869 transitions. Word has length 282 [2022-07-19 22:17:07,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:17:07,750 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 869 transitions. [2022-07-19 22:17:07,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 5.96) internal successors, (149), 24 states have internal predecessors, (149), 14 states have call successors, (35), 5 states have call predecessors, (35), 9 states have return successors, (33), 14 states have call predecessors, (33), 14 states have call successors, (33) [2022-07-19 22:17:07,751 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 869 transitions. [2022-07-19 22:17:07,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-07-19 22:17:07,753 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:17:07,753 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, 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, 1, 1, 1, 1, 1] [2022-07-19 22:17:07,790 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-07-19 22:17:07,966 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 [2022-07-19 22:17:07,966 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:17:07,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:17:07,966 INFO L85 PathProgramCache]: Analyzing trace with hash 320687671, now seen corresponding path program 1 times [2022-07-19 22:17:07,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:17:07,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230221886] [2022-07-19 22:17:07,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:17:07,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:17:08,043 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:17:08,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [709180686] [2022-07-19 22:17:08,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:17:08,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:17:08,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:17:08,045 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) [2022-07-19 22:17:08,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-19 22:17:08,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:17:08,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 3543 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 22:17:08,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:17:08,875 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 235 proven. 0 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2022-07-19 22:17:08,875 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:17:08,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:17:08,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230221886] [2022-07-19 22:17:08,876 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:17:08,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709180686] [2022-07-19 22:17:08,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [709180686] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:17:08,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:17:08,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 22:17:08,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704040778] [2022-07-19 22:17:08,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:17:08,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 22:17:08,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:17:08,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 22:17:08,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 22:17:08,879 INFO L87 Difference]: Start difference. First operand 574 states and 869 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, (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) [2022-07-19 22:17:08,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:17:08,922 INFO L93 Difference]: Finished difference Result 1115 states and 1778 transitions. [2022-07-19 22:17:08,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 22:17:08,923 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, (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 [2022-07-19 22:17:08,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:17:08,930 INFO L225 Difference]: With dead ends: 1115 [2022-07-19 22:17:08,930 INFO L226 Difference]: Without dead ends: 577 [2022-07-19 22:17:08,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 22:17:08,935 INFO L413 NwaCegarLoop]: 630 mSDtfsCounter, 7 mSDsluCounter, 1240 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1870 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 [2022-07-19 22:17:08,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1870 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 22:17:08,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2022-07-19 22:17:08,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 574. [2022-07-19 22:17:08,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 361 states have (on average 1.2243767313019391) internal successors, (442), 367 states have internal predecessors, (442), 171 states have call successors, (171), 34 states have call predecessors, (171), 40 states have return successors, (255), 173 states have call predecessors, (255), 169 states have call successors, (255) [2022-07-19 22:17:08,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 868 transitions. [2022-07-19 22:17:08,965 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 868 transitions. Word has length 282 [2022-07-19 22:17:08,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:17:08,966 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 868 transitions. [2022-07-19 22:17:08,966 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, (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) [2022-07-19 22:17:08,966 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 868 transitions. [2022-07-19 22:17:08,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2022-07-19 22:17:08,968 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:17:08,968 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:17:09,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-07-19 22:17:09,195 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 [2022-07-19 22:17:09,196 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:17:09,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:17:09,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1464292757, now seen corresponding path program 1 times [2022-07-19 22:17:09,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:17:09,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945441847] [2022-07-19 22:17:09,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:17:09,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:17:09,268 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:17:09,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1088148302] [2022-07-19 22:17:09,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:17:09,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:17:09,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:17:09,272 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) [2022-07-19 22:17:09,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-19 22:17:10,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:17:10,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 3566 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-19 22:17:10,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:17:10,156 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 236 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-07-19 22:17:10,156 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:17:10,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:17:10,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945441847] [2022-07-19 22:17:10,157 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:17:10,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1088148302] [2022-07-19 22:17:10,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1088148302] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:17:10,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:17:10,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 22:17:10,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616774732] [2022-07-19 22:17:10,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:17:10,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 22:17:10,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:17:10,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 22:17:10,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 22:17:10,160 INFO L87 Difference]: Start difference. First operand 574 states and 868 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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) [2022-07-19 22:17:12,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:17:12,211 INFO L93 Difference]: Finished difference Result 1119 states and 1799 transitions. [2022-07-19 22:17:12,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 22:17:12,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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 284 [2022-07-19 22:17:12,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:17:12,217 INFO L225 Difference]: With dead ends: 1119 [2022-07-19 22:17:12,217 INFO L226 Difference]: Without dead ends: 581 [2022-07-19 22:17:12,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-19 22:17:12,221 INFO L413 NwaCegarLoop]: 636 mSDtfsCounter, 15 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2396 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-19 22:17:12,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2396 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-19 22:17:12,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2022-07-19 22:17:12,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 575. [2022-07-19 22:17:12,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 362 states have (on average 1.223756906077348) internal successors, (443), 368 states have internal predecessors, (443), 171 states have call successors, (171), 34 states have call predecessors, (171), 40 states have return successors, (255), 173 states have call predecessors, (255), 169 states have call successors, (255) [2022-07-19 22:17:12,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 869 transitions. [2022-07-19 22:17:12,251 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 869 transitions. Word has length 284 [2022-07-19 22:17:12,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:17:12,252 INFO L495 AbstractCegarLoop]: Abstraction has 575 states and 869 transitions. [2022-07-19 22:17:12,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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) [2022-07-19 22:17:12,252 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 869 transitions. [2022-07-19 22:17:12,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2022-07-19 22:17:12,254 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:17:12,254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:17:12,289 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-07-19 22:17:12,467 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 [2022-07-19 22:17:12,467 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:17:12,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:17:12,468 INFO L85 PathProgramCache]: Analyzing trace with hash 561372179, now seen corresponding path program 1 times [2022-07-19 22:17:12,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:17:12,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499437196] [2022-07-19 22:17:12,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:17:12,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:17:12,537 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:17:12,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1577252094] [2022-07-19 22:17:12,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:17:12,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:17:12,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:17:12,539 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) [2022-07-19 22:17:12,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-07-19 22:17:13,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:17:13,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 3561 conjuncts, 22 conjunts are in the unsatisfiable core [2022-07-19 22:17:13,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:17:13,449 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2022-07-19 22:17:13,449 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:17:13,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:17:13,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499437196] [2022-07-19 22:17:13,450 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:17:13,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577252094] [2022-07-19 22:17:13,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577252094] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:17:13,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:17:13,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 22:17:13,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932429530] [2022-07-19 22:17:13,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:17:13,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 22:17:13,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:17:13,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 22:17:13,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 22:17:13,452 INFO L87 Difference]: Start difference. First operand 575 states and 869 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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) [2022-07-19 22:17:13,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:17:13,524 INFO L93 Difference]: Finished difference Result 1158 states and 1830 transitions. [2022-07-19 22:17:13,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 22:17:13,525 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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 284 [2022-07-19 22:17:13,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:17:13,530 INFO L225 Difference]: With dead ends: 1158 [2022-07-19 22:17:13,530 INFO L226 Difference]: Without dead ends: 619 [2022-07-19 22:17:13,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-19 22:17:13,534 INFO L413 NwaCegarLoop]: 650 mSDtfsCounter, 8 mSDsluCounter, 1924 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2574 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 [2022-07-19 22:17:13,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2574 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 22:17:13,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2022-07-19 22:17:13,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 601. [2022-07-19 22:17:13,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 388 states have (on average 1.2242268041237114) internal successors, (475), 394 states have internal predecessors, (475), 171 states have call successors, (171), 34 states have call predecessors, (171), 40 states have return successors, (255), 173 states have call predecessors, (255), 169 states have call successors, (255) [2022-07-19 22:17:13,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 901 transitions. [2022-07-19 22:17:13,572 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 901 transitions. Word has length 284 [2022-07-19 22:17:13,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:17:13,572 INFO L495 AbstractCegarLoop]: Abstraction has 601 states and 901 transitions. [2022-07-19 22:17:13,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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) [2022-07-19 22:17:13,573 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 901 transitions. [2022-07-19 22:17:13,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-07-19 22:17:13,575 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:17:13,576 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:17:13,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-07-19 22:17:13,799 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 [2022-07-19 22:17:13,799 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:17:13,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:17:13,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1118200742, now seen corresponding path program 1 times [2022-07-19 22:17:13,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:17:13,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240652874] [2022-07-19 22:17:13,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:17:13,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:17:13,879 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:17:13,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [454585242] [2022-07-19 22:17:13,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:17:13,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:17:13,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:17:13,882 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) [2022-07-19 22:17:13,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-07-19 22:17:14,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:17:14,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 3575 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 22:17:14,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:17:14,790 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2022-07-19 22:17:14,791 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:17:14,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:17:14,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240652874] [2022-07-19 22:17:14,791 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:17:14,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454585242] [2022-07-19 22:17:14,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454585242] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:17:14,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:17:14,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 22:17:14,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759632328] [2022-07-19 22:17:14,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:17:14,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 22:17:14,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:17:14,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 22:17:14,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 22:17:14,794 INFO L87 Difference]: Start difference. First operand 601 states and 901 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 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) [2022-07-19 22:17:14,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:17:14,838 INFO L93 Difference]: Finished difference Result 1156 states and 1784 transitions. [2022-07-19 22:17:14,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 22:17:14,839 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 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 302 [2022-07-19 22:17:14,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:17:14,844 INFO L225 Difference]: With dead ends: 1156 [2022-07-19 22:17:14,844 INFO L226 Difference]: Without dead ends: 591 [2022-07-19 22:17:14,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 22:17:14,848 INFO L413 NwaCegarLoop]: 626 mSDtfsCounter, 2 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1867 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 22:17:14,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1867 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 22:17:14,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2022-07-19 22:17:14,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 585. [2022-07-19 22:17:14,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 372 states have (on average 1.206989247311828) internal successors, (449), 378 states have internal predecessors, (449), 171 states have call successors, (171), 34 states have call predecessors, (171), 40 states have return successors, (255), 173 states have call predecessors, (255), 169 states have call successors, (255) [2022-07-19 22:17:14,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 875 transitions. [2022-07-19 22:17:14,881 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 875 transitions. Word has length 302 [2022-07-19 22:17:14,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:17:14,881 INFO L495 AbstractCegarLoop]: Abstraction has 585 states and 875 transitions. [2022-07-19 22:17:14,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 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) [2022-07-19 22:17:14,882 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 875 transitions. [2022-07-19 22:17:14,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-07-19 22:17:14,883 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:17:14,884 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:17:14,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-07-19 22:17:15,107 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 [2022-07-19 22:17:15,107 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:17:15,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:17:15,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1067827537, now seen corresponding path program 1 times [2022-07-19 22:17:15,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:17:15,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349353417] [2022-07-19 22:17:15,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:17:15,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:17:15,183 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:17:15,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2056101817] [2022-07-19 22:17:15,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:17:15,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:17:15,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:17:15,185 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) [2022-07-19 22:17:15,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-07-19 22:17:16,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:17:16,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 3563 conjuncts, 45 conjunts are in the unsatisfiable core [2022-07-19 22:17:16,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:17:16,563 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 [2022-07-19 22:17:16,565 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 [2022-07-19 22:17:16,587 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-07-19 22:17:16,587 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:17:16,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:17:16,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349353417] [2022-07-19 22:17:16,587 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:17:16,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056101817] [2022-07-19 22:17:16,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056101817] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:17:16,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:17:16,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-19 22:17:16,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357950766] [2022-07-19 22:17:16,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:17:16,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-19 22:17:16,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:17:16,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-19 22:17:16,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-07-19 22:17:16,589 INFO L87 Difference]: Start difference. First operand 585 states and 875 transitions. Second operand has 13 states, 13 states have (on average 9.846153846153847) internal successors, (128), 13 states have internal predecessors, (128), 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) [2022-07-19 22:17:24,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:17:24,170 INFO L93 Difference]: Finished difference Result 1158 states and 1785 transitions. [2022-07-19 22:17:24,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 22:17:24,171 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.846153846153847) internal successors, (128), 13 states have internal predecessors, (128), 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 286 [2022-07-19 22:17:24,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:17:24,178 INFO L225 Difference]: With dead ends: 1158 [2022-07-19 22:17:24,178 INFO L226 Difference]: Without dead ends: 673 [2022-07-19 22:17:24,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 271 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2022-07-19 22:17:24,182 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 106 mSDsluCounter, 5561 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 6168 SdHoareTripleChecker+Invalid, 1568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 132 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-07-19 22:17:24,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 6168 Invalid, 1568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1424 Invalid, 0 Unknown, 132 Unchecked, 7.4s Time] [2022-07-19 22:17:24,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2022-07-19 22:17:24,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 640. [2022-07-19 22:17:24,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 415 states have (on average 1.1975903614457832) internal successors, (497), 421 states have internal predecessors, (497), 177 states have call successors, (177), 38 states have call predecessors, (177), 46 states have return successors, (296), 181 states have call predecessors, (296), 175 states have call successors, (296) [2022-07-19 22:17:24,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 970 transitions. [2022-07-19 22:17:24,215 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 970 transitions. Word has length 286 [2022-07-19 22:17:24,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:17:24,216 INFO L495 AbstractCegarLoop]: Abstraction has 640 states and 970 transitions. [2022-07-19 22:17:24,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.846153846153847) internal successors, (128), 13 states have internal predecessors, (128), 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) [2022-07-19 22:17:24,216 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 970 transitions. [2022-07-19 22:17:24,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-07-19 22:17:24,218 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:17:24,218 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, 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, 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] [2022-07-19 22:17:24,254 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2022-07-19 22:17:24,431 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 [2022-07-19 22:17:24,431 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:17:24,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:17:24,432 INFO L85 PathProgramCache]: Analyzing trace with hash 506581833, now seen corresponding path program 1 times [2022-07-19 22:17:24,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:17:24,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156835572] [2022-07-19 22:17:24,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:17:24,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:17:24,504 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:17:24,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [5623739] [2022-07-19 22:17:24,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:17:24,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:17:24,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:17:24,506 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) [2022-07-19 22:17:24,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-07-19 22:17:25,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:17:25,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 3568 conjuncts, 59 conjunts are in the unsatisfiable core [2022-07-19 22:17:25,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:17:25,877 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 25 treesize of output 17 [2022-07-19 22:17:25,879 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 [2022-07-19 22:17:25,896 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 300 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2022-07-19 22:17:25,897 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:17:25,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:17:25,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156835572] [2022-07-19 22:17:25,897 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:17:25,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5623739] [2022-07-19 22:17:25,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [5623739] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:17:25,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:17:25,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-19 22:17:25,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030908717] [2022-07-19 22:17:25,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:17:25,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-19 22:17:25,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:17:25,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-19 22:17:25,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-19 22:17:25,900 INFO L87 Difference]: Start difference. First operand 640 states and 970 transitions. Second operand has 13 states, 13 states have (on average 9.384615384615385) internal successors, (122), 13 states have internal predecessors, (122), 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) [2022-07-19 22:17:28,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:17:28,543 INFO L93 Difference]: Finished difference Result 1283 states and 2040 transitions. [2022-07-19 22:17:28,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 22:17:28,544 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.384615384615385) internal successors, (122), 13 states have internal predecessors, (122), 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 288 [2022-07-19 22:17:28,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:17:28,549 INFO L225 Difference]: With dead ends: 1283 [2022-07-19 22:17:28,549 INFO L226 Difference]: Without dead ends: 761 [2022-07-19 22:17:28,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 273 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2022-07-19 22:17:28,554 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 70 mSDsluCounter, 5574 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 6185 SdHoareTripleChecker+Invalid, 990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 146 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-19 22:17:28,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 6185 Invalid, 990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 830 Invalid, 0 Unknown, 146 Unchecked, 2.4s Time] [2022-07-19 22:17:28,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2022-07-19 22:17:28,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 673. [2022-07-19 22:17:28,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 437 states have (on average 1.1876430205949657) internal successors, (519), 443 states have internal predecessors, (519), 182 states have call successors, (182), 43 states have call predecessors, (182), 52 states have return successors, (316), 187 states have call predecessors, (316), 180 states have call successors, (316) [2022-07-19 22:17:28,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 1017 transitions. [2022-07-19 22:17:28,601 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 1017 transitions. Word has length 288 [2022-07-19 22:17:28,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:17:28,602 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 1017 transitions. [2022-07-19 22:17:28,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.384615384615385) internal successors, (122), 13 states have internal predecessors, (122), 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) [2022-07-19 22:17:28,602 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 1017 transitions. [2022-07-19 22:17:28,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-07-19 22:17:28,605 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:17:28,605 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, 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] [2022-07-19 22:17:28,639 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2022-07-19 22:17:28,831 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 [2022-07-19 22:17:28,831 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:17:28,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:17:28,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1648108523, now seen corresponding path program 1 times [2022-07-19 22:17:28,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:17:28,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700056783] [2022-07-19 22:17:28,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:17:28,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:17:28,908 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:17:28,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [228752397] [2022-07-19 22:17:28,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:17:28,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:17:28,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:17:28,910 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) [2022-07-19 22:17:28,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-07-19 22:17:29,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:17:29,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 3561 conjuncts, 33 conjunts are in the unsatisfiable core [2022-07-19 22:17:29,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:17:29,968 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 295 proven. 0 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2022-07-19 22:17:29,968 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:17:29,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:17:29,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700056783] [2022-07-19 22:17:29,968 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:17:29,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228752397] [2022-07-19 22:17:29,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228752397] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:17:29,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:17:29,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 22:17:29,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880152777] [2022-07-19 22:17:29,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:17:29,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 22:17:29,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:17:29,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 22:17:29,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-19 22:17:29,970 INFO L87 Difference]: Start difference. First operand 673 states and 1017 transitions. Second operand has 12 states, 12 states have (on average 10.416666666666666) internal successors, (125), 9 states have internal predecessors, (125), 2 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (31), 5 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-19 22:17:30,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:17:30,144 INFO L93 Difference]: Finished difference Result 1353 states and 2146 transitions. [2022-07-19 22:17:30,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 22:17:30,144 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.416666666666666) internal successors, (125), 9 states have internal predecessors, (125), 2 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (31), 5 states have call predecessors, (31), 2 states have call successors, (31) Word has length 295 [2022-07-19 22:17:30,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:17:30,149 INFO L225 Difference]: With dead ends: 1353 [2022-07-19 22:17:30,150 INFO L226 Difference]: Without dead ends: 716 [2022-07-19 22:17:30,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-07-19 22:17:30,153 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 18 mSDsluCounter, 6410 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 7058 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 22:17:30,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 7058 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 22:17:30,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2022-07-19 22:17:30,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 693. [2022-07-19 22:17:30,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 455 states have (on average 1.1824175824175824) internal successors, (538), 459 states have internal predecessors, (538), 182 states have call successors, (182), 43 states have call predecessors, (182), 54 states have return successors, (356), 191 states have call predecessors, (356), 180 states have call successors, (356) [2022-07-19 22:17:30,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1076 transitions. [2022-07-19 22:17:30,191 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1076 transitions. Word has length 295 [2022-07-19 22:17:30,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:17:30,191 INFO L495 AbstractCegarLoop]: Abstraction has 693 states and 1076 transitions. [2022-07-19 22:17:30,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.416666666666666) internal successors, (125), 9 states have internal predecessors, (125), 2 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (31), 5 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-19 22:17:30,192 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1076 transitions. [2022-07-19 22:17:30,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-07-19 22:17:30,195 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:17:30,195 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-19 22:17:30,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-07-19 22:17:30,414 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 [2022-07-19 22:17:30,414 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:17:30,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:17:30,415 INFO L85 PathProgramCache]: Analyzing trace with hash 866339791, now seen corresponding path program 1 times [2022-07-19 22:17:30,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:17:30,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187378507] [2022-07-19 22:17:30,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:17:30,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:17:30,489 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:17:30,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [147714057] [2022-07-19 22:17:30,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:17:30,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:17:30,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:17:30,491 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) [2022-07-19 22:17:30,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-07-19 22:17:31,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:17:31,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 3571 conjuncts, 36 conjunts are in the unsatisfiable core [2022-07-19 22:17:31,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:17:31,520 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 189 proven. 1 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2022-07-19 22:17:31,520 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 22:17:32,218 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 67 proven. 13 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked. [2022-07-19 22:17:32,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:17:32,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187378507] [2022-07-19 22:17:32,219 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:17:32,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147714057] [2022-07-19 22:17:32,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147714057] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 22:17:32,219 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-19 22:17:32,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 22 [2022-07-19 22:17:32,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114794853] [2022-07-19 22:17:32,220 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-19 22:17:32,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-19 22:17:32,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:17:32,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-19 22:17:32,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=415, Unknown=0, NotChecked=0, Total=462 [2022-07-19 22:17:32,221 INFO L87 Difference]: Start difference. First operand 693 states and 1076 transitions. Second operand has 22 states, 18 states have (on average 7.333333333333333) internal successors, (132), 15 states have internal predecessors, (132), 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) [2022-07-19 22:17:32,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:17:32,873 INFO L93 Difference]: Finished difference Result 1222 states and 1972 transitions. [2022-07-19 22:17:32,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-19 22:17:32,875 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 18 states have (on average 7.333333333333333) internal successors, (132), 15 states have internal predecessors, (132), 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 299 [2022-07-19 22:17:32,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:17:32,881 INFO L225 Difference]: With dead ends: 1222 [2022-07-19 22:17:32,881 INFO L226 Difference]: Without dead ends: 701 [2022-07-19 22:17:32,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 599 GetRequests, 575 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2022-07-19 22:17:32,885 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 15 mSDsluCounter, 9636 mSDsCounter, 0 mSdLazyCounter, 938 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 10252 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-19 22:17:32,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 10252 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 938 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-19 22:17:32,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2022-07-19 22:17:32,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 693. [2022-07-19 22:17:32,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 455 states have (on average 1.1824175824175824) internal successors, (538), 459 states have internal predecessors, (538), 182 states have call successors, (182), 43 states have call predecessors, (182), 54 states have return successors, (350), 191 states have call predecessors, (350), 180 states have call successors, (350) [2022-07-19 22:17:32,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1070 transitions. [2022-07-19 22:17:32,923 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1070 transitions. Word has length 299 [2022-07-19 22:17:32,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:17:32,924 INFO L495 AbstractCegarLoop]: Abstraction has 693 states and 1070 transitions. [2022-07-19 22:17:32,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 18 states have (on average 7.333333333333333) internal successors, (132), 15 states have internal predecessors, (132), 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) [2022-07-19 22:17:32,924 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1070 transitions. [2022-07-19 22:17:32,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2022-07-19 22:17:32,926 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:17:32,927 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, 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] [2022-07-19 22:17:32,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-07-19 22:17:33,150 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 [2022-07-19 22:17:33,150 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:17:33,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:17:33,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1382361521, now seen corresponding path program 1 times [2022-07-19 22:17:33,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:17:33,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001966264] [2022-07-19 22:17:33,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:17:33,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:17:33,220 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:17:33,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [536420772] [2022-07-19 22:17:33,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:17:33,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:17:33,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:17:33,222 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) [2022-07-19 22:17:33,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-07-19 22:17:34,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:17:34,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 3568 conjuncts, 48 conjunts are in the unsatisfiable core [2022-07-19 22:17:34,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:17:34,288 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_8918 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_8918) |c_#memory_int|)) is different from true [2022-07-19 22:17:34,434 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 [2022-07-19 22:17:34,473 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 [2022-07-19 22:17:34,510 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 266 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-07-19 22:17:34,511 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:17:34,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:17:34,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001966264] [2022-07-19 22:17:34,511 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:17:34,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536420772] [2022-07-19 22:17:34,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536420772] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:17:34,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:17:34,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-19 22:17:34,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265272189] [2022-07-19 22:17:34,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:17:34,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-19 22:17:34,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:17:34,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-19 22:17:34,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=123, Unknown=10, NotChecked=22, Total=182 [2022-07-19 22:17:34,514 INFO L87 Difference]: Start difference. First operand 693 states and 1070 transitions. Second operand has 14 states, 14 states have (on average 8.642857142857142) internal successors, (121), 13 states have internal predecessors, (121), 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) [2022-07-19 22:17:38,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:17:38,700 INFO L93 Difference]: Finished difference Result 1453 states and 2392 transitions. [2022-07-19 22:17:38,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-19 22:17:38,701 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.642857142857142) internal successors, (121), 13 states have internal predecessors, (121), 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 289 [2022-07-19 22:17:38,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:17:38,706 INFO L225 Difference]: With dead ends: 1453 [2022-07-19 22:17:38,706 INFO L226 Difference]: Without dead ends: 801 [2022-07-19 22:17:38,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=115, Invalid=420, Unknown=21, NotChecked=44, Total=600 [2022-07-19 22:17:38,710 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 263 mSDsluCounter, 3352 mSDsCounter, 0 mSdLazyCounter, 2722 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 3939 SdHoareTripleChecker+Invalid, 5574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 2722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2636 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-07-19 22:17:38,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 3939 Invalid, 5574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 2722 Invalid, 0 Unknown, 2636 Unchecked, 3.9s Time] [2022-07-19 22:17:38,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2022-07-19 22:17:38,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 646. [2022-07-19 22:17:38,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 419 states have (on average 1.1909307875894988) internal successors, (499), 422 states have internal predecessors, (499), 177 states have call successors, (177), 38 states have call predecessors, (177), 48 states have return successors, (330), 186 states have call predecessors, (330), 175 states have call successors, (330) [2022-07-19 22:17:38,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 1006 transitions. [2022-07-19 22:17:38,751 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 1006 transitions. Word has length 289 [2022-07-19 22:17:38,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:17:38,752 INFO L495 AbstractCegarLoop]: Abstraction has 646 states and 1006 transitions. [2022-07-19 22:17:38,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.642857142857142) internal successors, (121), 13 states have internal predecessors, (121), 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) [2022-07-19 22:17:38,752 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 1006 transitions. [2022-07-19 22:17:38,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2022-07-19 22:17:38,754 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:17:38,755 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, 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, 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] [2022-07-19 22:17:38,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-07-19 22:17:38,967 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 [2022-07-19 22:17:38,967 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:17:38,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:17:38,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1853967951, now seen corresponding path program 1 times [2022-07-19 22:17:38,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:17:38,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737642291] [2022-07-19 22:17:38,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:17:38,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:17:39,044 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:17:39,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1908574734] [2022-07-19 22:17:39,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:17:39,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:17:39,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:17:39,046 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) [2022-07-19 22:17:39,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-07-19 22:17:40,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:17:40,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 3568 conjuncts, 158 conjunts are in the unsatisfiable core [2022-07-19 22:17:40,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:17:42,313 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_9315 Int) (v_ArrVal_9316 Int)) (and (= |c_#memory_$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$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_9315))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_9316)) |c_#memory_$Pointer$.offset|))) is different from true [2022-07-19 22:17:44,327 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_9315 Int) (v_ArrVal_9316 Int)) (and (= |c_#memory_$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$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_9315))) (= |c_#memory_$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_9316))))) is different from true [2022-07-19 22:17:44,377 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-07-19 22:17:44,378 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 30 [2022-07-19 22:17:44,396 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-07-19 22:17:44,397 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 30 [2022-07-19 22:17:44,786 INFO L356 Elim1Store]: treesize reduction 75, result has 10.7 percent of original size [2022-07-19 22:17:44,788 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 79 treesize of output 96 [2022-07-19 22:17:44,818 INFO L356 Elim1Store]: treesize reduction 75, result has 10.7 percent of original size [2022-07-19 22:17:44,818 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 79 treesize of output 96 [2022-07-19 22:17:44,829 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 22:17:44,833 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 185 [2022-07-19 22:17:44,849 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-19 22:17:44,852 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 185 [2022-07-19 22:17:44,873 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 [2022-07-19 22:17:44,947 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 167 treesize of output 121 [2022-07-19 22:17:44,970 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 19 treesize of output 11 [2022-07-19 22:17:44,999 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 19 treesize of output 11 [2022-07-19 22:17:45,049 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 39 [2022-07-19 22:17:45,095 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 63 [2022-07-19 22:17:45,150 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-19 22:17:45,151 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 189 treesize of output 144 [2022-07-19 22:17:46,561 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_9352 Int)) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_9352)))) (exists ((v_ArrVal_9353 Int)) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$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_9353))))) is different from true [2022-07-19 22:17:49,048 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 36 treesize of output 30 [2022-07-19 22:17:49,054 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-07-19 22:17:49,334 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 320 proven. 52 refuted. 15 times theorem prover too weak. 100 trivial. 19 not checked. [2022-07-19 22:17:49,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 22:17:49,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:17:49,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737642291] [2022-07-19 22:17:49,797 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:17:49,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908574734] [2022-07-19 22:17:49,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908574734] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 22:17:49,798 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-19 22:17:49,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2022-07-19 22:17:49,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830881591] [2022-07-19 22:17:49,798 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-19 22:17:49,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-07-19 22:17:49,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:17:49,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-07-19 22:17:49,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=731, Unknown=3, NotChecked=168, Total=992 [2022-07-19 22:17:49,800 INFO L87 Difference]: Start difference. First operand 646 states and 1006 transitions. Second operand has 31 states, 28 states have (on average 5.607142857142857) internal successors, (157), 30 states have internal predecessors, (157), 16 states have call successors, (36), 6 states have call predecessors, (36), 11 states have return successors, (34), 14 states have call predecessors, (34), 16 states have call successors, (34) [2022-07-19 22:17:52,128 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_9352 Int)) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_9352)))) (exists ((v_ArrVal_9353 Int)) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_9353)))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_9315 Int) (v_ArrVal_9316 Int)) (and (= |c_#memory_$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$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_9315))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_9316)) |c_#memory_$Pointer$.offset|)))) is different from true [2022-07-19 22:17:59,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:17:59,892 INFO L93 Difference]: Finished difference Result 1586 states and 2624 transitions. [2022-07-19 22:17:59,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-07-19 22:17:59,892 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 28 states have (on average 5.607142857142857) internal successors, (157), 30 states have internal predecessors, (157), 16 states have call successors, (36), 6 states have call predecessors, (36), 11 states have return successors, (34), 14 states have call predecessors, (34), 16 states have call successors, (34) Word has length 289 [2022-07-19 22:17:59,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:17:59,899 INFO L225 Difference]: With dead ends: 1586 [2022-07-19 22:17:59,899 INFO L226 Difference]: Without dead ends: 1070 [2022-07-19 22:17:59,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 329 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=108, Invalid=896, Unknown=4, NotChecked=252, Total=1260 [2022-07-19 22:17:59,903 INFO L413 NwaCegarLoop]: 677 mSDtfsCounter, 354 mSDsluCounter, 6874 mSDsCounter, 0 mSdLazyCounter, 4540 mSolverCounterSat, 472 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 7551 SdHoareTripleChecker+Invalid, 12358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 472 IncrementalHoareTripleChecker+Valid, 4540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7346 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-07-19 22:17:59,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 7551 Invalid, 12358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [472 Valid, 4540 Invalid, 0 Unknown, 7346 Unchecked, 5.9s Time] [2022-07-19 22:17:59,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2022-07-19 22:17:59,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 803. [2022-07-19 22:17:59,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 541 states have (on average 1.1829944547134936) internal successors, (640), 546 states have internal predecessors, (640), 193 states have call successors, (193), 50 states have call predecessors, (193), 67 states have return successors, (448), 207 states have call predecessors, (448), 191 states have call successors, (448) [2022-07-19 22:17:59,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1281 transitions. [2022-07-19 22:17:59,967 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1281 transitions. Word has length 289 [2022-07-19 22:17:59,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:17:59,968 INFO L495 AbstractCegarLoop]: Abstraction has 803 states and 1281 transitions. [2022-07-19 22:17:59,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 28 states have (on average 5.607142857142857) internal successors, (157), 30 states have internal predecessors, (157), 16 states have call successors, (36), 6 states have call predecessors, (36), 11 states have return successors, (34), 14 states have call predecessors, (34), 16 states have call successors, (34) [2022-07-19 22:17:59,968 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1281 transitions. [2022-07-19 22:17:59,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-07-19 22:17:59,971 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:17:59,971 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2022-07-19 22:18:00,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-07-19 22:18:00,187 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 [2022-07-19 22:18:00,187 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:18:00,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:18:00,188 INFO L85 PathProgramCache]: Analyzing trace with hash 2055864463, now seen corresponding path program 1 times [2022-07-19 22:18:00,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:18:00,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13831167] [2022-07-19 22:18:00,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:00,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:18:00,282 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:18:00,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1647388254] [2022-07-19 22:18:00,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:00,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:18:00,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:18:00,285 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) [2022-07-19 22:18:00,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-07-19 22:18:01,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:01,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 3571 conjuncts, 42 conjunts are in the unsatisfiable core [2022-07-19 22:18:01,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:18:01,429 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 296 proven. 11 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2022-07-19 22:18:01,429 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 22:18:02,489 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 76 proven. 45 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2022-07-19 22:18:02,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:18:02,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13831167] [2022-07-19 22:18:02,489 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:18:02,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647388254] [2022-07-19 22:18:02,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647388254] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 22:18:02,490 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-19 22:18:02,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 21] total 30 [2022-07-19 22:18:02,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189407852] [2022-07-19 22:18:02,490 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-19 22:18:02,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-07-19 22:18:02,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:18:02,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-07-19 22:18:02,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=799, Unknown=0, NotChecked=0, Total=870 [2022-07-19 22:18:02,493 INFO L87 Difference]: Start difference. First operand 803 states and 1281 transitions. Second operand has 30 states, 26 states have (on average 6.538461538461538) internal successors, (170), 21 states have internal predecessors, (170), 8 states have call successors, (40), 3 states have call predecessors, (40), 10 states have return successors, (43), 12 states have call predecessors, (43), 7 states have call successors, (43) [2022-07-19 22:18:03,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:18:03,456 INFO L93 Difference]: Finished difference Result 1555 states and 2622 transitions. [2022-07-19 22:18:03,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-19 22:18:03,456 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 26 states have (on average 6.538461538461538) internal successors, (170), 21 states have internal predecessors, (170), 8 states have call successors, (40), 3 states have call predecessors, (40), 10 states have return successors, (43), 12 states have call predecessors, (43), 7 states have call successors, (43) Word has length 299 [2022-07-19 22:18:03,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:18:03,462 INFO L225 Difference]: With dead ends: 1555 [2022-07-19 22:18:03,462 INFO L226 Difference]: Without dead ends: 953 [2022-07-19 22:18:03,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 601 GetRequests, 567 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=99, Invalid=1091, Unknown=0, NotChecked=0, Total=1190 [2022-07-19 22:18:03,465 INFO L413 NwaCegarLoop]: 646 mSDtfsCounter, 30 mSDsluCounter, 13837 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 14483 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-19 22:18:03,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 14483 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-19 22:18:03,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2022-07-19 22:18:03,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 909. [2022-07-19 22:18:03,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 636 states have (on average 1.1839622641509433) internal successors, (753), 638 states have internal predecessors, (753), 199 states have call successors, (199), 50 states have call predecessors, (199), 72 states have return successors, (538), 221 states have call predecessors, (538), 197 states have call successors, (538) [2022-07-19 22:18:03,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1490 transitions. [2022-07-19 22:18:03,530 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1490 transitions. Word has length 299 [2022-07-19 22:18:03,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:18:03,530 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1490 transitions. [2022-07-19 22:18:03,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 26 states have (on average 6.538461538461538) internal successors, (170), 21 states have internal predecessors, (170), 8 states have call successors, (40), 3 states have call predecessors, (40), 10 states have return successors, (43), 12 states have call predecessors, (43), 7 states have call successors, (43) [2022-07-19 22:18:03,531 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1490 transitions. [2022-07-19 22:18:03,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-07-19 22:18:03,563 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:18:03,563 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, 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] [2022-07-19 22:18:03,600 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-07-19 22:18:03,763 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 [2022-07-19 22:18:03,764 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:18:03,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:18:03,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1469310916, now seen corresponding path program 2 times [2022-07-19 22:18:03,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:18:03,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58972910] [2022-07-19 22:18:03,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:03,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:18:03,833 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:18:03,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1227997207] [2022-07-19 22:18:03,833 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-19 22:18:03,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:18:03,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:18:03,835 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) [2022-07-19 22:18:03,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-07-19 22:18:04,940 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-19 22:18:04,940 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 22:18:04,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 3572 conjuncts, 260 conjunts are in the unsatisfiable core [2022-07-19 22:18:04,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:18:04,974 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 [2022-07-19 22:18:05,265 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-07-19 22:18:05,265 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 23 treesize of output 22 [2022-07-19 22:18:07,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 22:18:07,322 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 23 treesize of output 22 [2022-07-19 22:18:09,494 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_10124 (Array Int Int))) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_10124) |c_#memory_int|)) is different from true [2022-07-19 22:18:15,906 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_10126 Int)) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_10126)) |c_#memory_int|)) is different from true [2022-07-19 22:18:35,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 22:18:35,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 22:18:35,481 INFO L356 Elim1Store]: treesize reduction 96, result has 1.0 percent of original size [2022-07-19 22:18:35,482 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 59 treesize of output 1 [2022-07-19 22:18:35,488 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 275 proven. 20 refuted. 0 times theorem prover too weak. 208 trivial. 3 not checked. [2022-07-19 22:18:35,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 22:18:36,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:18:36,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58972910] [2022-07-19 22:18:36,900 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:18:36,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227997207] [2022-07-19 22:18:36,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227997207] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 22:18:36,900 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-19 22:18:36,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2022-07-19 22:18:36,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714762695] [2022-07-19 22:18:36,901 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-19 22:18:36,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-07-19 22:18:36,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:18:36,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-07-19 22:18:36,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1283, Unknown=20, NotChecked=146, Total=1560 [2022-07-19 22:18:36,903 INFO L87 Difference]: Start difference. First operand 909 states and 1490 transitions. Second operand has 33 states, 30 states have (on average 5.0) internal successors, (150), 27 states have internal predecessors, (150), 12 states have call successors, (36), 7 states have call predecessors, (36), 11 states have return successors, (34), 12 states have call predecessors, (34), 12 states have call successors, (34) [2022-07-19 22:18:50,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:18:50,590 INFO L93 Difference]: Finished difference Result 1900 states and 3204 transitions. [2022-07-19 22:18:50,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-07-19 22:18:50,591 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 30 states have (on average 5.0) internal successors, (150), 27 states have internal predecessors, (150), 12 states have call successors, (36), 7 states have call predecessors, (36), 11 states have return successors, (34), 12 states have call predecessors, (34), 12 states have call successors, (34) Word has length 295 [2022-07-19 22:18:50,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:18:50,597 INFO L225 Difference]: With dead ends: 1900 [2022-07-19 22:18:50,597 INFO L226 Difference]: Without dead ends: 1098 [2022-07-19 22:18:50,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 328 SyntacticMatches, 8 SemanticMatches, 49 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 36.9s TimeCoverageRelationStatistics Valid=175, Invalid=2147, Unknown=38, NotChecked=190, Total=2550 [2022-07-19 22:18:50,602 INFO L413 NwaCegarLoop]: 615 mSDtfsCounter, 364 mSDsluCounter, 5464 mSDsCounter, 0 mSdLazyCounter, 4084 mSolverCounterSat, 475 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 6079 SdHoareTripleChecker+Invalid, 11238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 475 IncrementalHoareTripleChecker+Valid, 4084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6679 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-07-19 22:18:50,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 6079 Invalid, 11238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [475 Valid, 4084 Invalid, 0 Unknown, 6679 Unchecked, 6.8s Time] [2022-07-19 22:18:50,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2022-07-19 22:18:50,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 952. [2022-07-19 22:18:50,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 669 states have (on average 1.1838565022421526) internal successors, (792), 673 states have internal predecessors, (792), 202 states have call successors, (202), 54 states have call predecessors, (202), 79 states have return successors, (570), 225 states have call predecessors, (570), 200 states have call successors, (570) [2022-07-19 22:18:50,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1564 transitions. [2022-07-19 22:18:50,680 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1564 transitions. Word has length 295 [2022-07-19 22:18:50,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:18:50,680 INFO L495 AbstractCegarLoop]: Abstraction has 952 states and 1564 transitions. [2022-07-19 22:18:50,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 30 states have (on average 5.0) internal successors, (150), 27 states have internal predecessors, (150), 12 states have call successors, (36), 7 states have call predecessors, (36), 11 states have return successors, (34), 12 states have call predecessors, (34), 12 states have call successors, (34) [2022-07-19 22:18:50,681 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1564 transitions. [2022-07-19 22:18:50,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-07-19 22:18:50,685 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:18:50,686 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:18:50,722 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2022-07-19 22:18:50,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-07-19 22:18:50,911 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:18:50,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:18:50,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1676330514, now seen corresponding path program 1 times [2022-07-19 22:18:50,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:18:50,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502691331] [2022-07-19 22:18:50,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:50,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:18:50,992 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:18:50,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1046579102] [2022-07-19 22:18:50,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:50,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:18:50,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:18:50,994 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 22:18:50,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-07-19 22:18:52,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:52,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 3602 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-19 22:18:52,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:18:52,201 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2022-07-19 22:18:52,201 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:18:52,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:18:52,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502691331] [2022-07-19 22:18:52,202 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:18:52,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046579102] [2022-07-19 22:18:52,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1046579102] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:18:52,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:18:52,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 22:18:52,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086324203] [2022-07-19 22:18:52,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:18:52,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 22:18:52,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:18:52,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 22:18:52,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 22:18:52,203 INFO L87 Difference]: Start difference. First operand 952 states and 1564 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-19 22:18:53,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:18:53,943 INFO L93 Difference]: Finished difference Result 1769 states and 3101 transitions. [2022-07-19 22:18:53,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 22:18:53,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 295 [2022-07-19 22:18:53,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:18:53,952 INFO L225 Difference]: With dead ends: 1769 [2022-07-19 22:18:53,952 INFO L226 Difference]: Without dead ends: 938 [2022-07-19 22:18:53,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 22:18:53,959 INFO L413 NwaCegarLoop]: 641 mSDtfsCounter, 7 mSDsluCounter, 1770 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2411 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-19 22:18:53,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2411 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-19 22:18:53,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2022-07-19 22:18:54,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 938. [2022-07-19 22:18:54,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 656 states have (on average 1.1768292682926829) internal successors, (772), 660 states have internal predecessors, (772), 202 states have call successors, (202), 54 states have call predecessors, (202), 78 states have return successors, (512), 224 states have call predecessors, (512), 200 states have call successors, (512) [2022-07-19 22:18:54,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1486 transitions. [2022-07-19 22:18:54,017 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1486 transitions. Word has length 295 [2022-07-19 22:18:54,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:18:54,017 INFO L495 AbstractCegarLoop]: Abstraction has 938 states and 1486 transitions. [2022-07-19 22:18:54,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-19 22:18:54,018 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1486 transitions. [2022-07-19 22:18:54,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-07-19 22:18:54,021 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:18:54,022 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:18:54,061 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2022-07-19 22:18:54,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:18:54,239 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:18:54,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:18:54,240 INFO L85 PathProgramCache]: Analyzing trace with hash 2096848034, now seen corresponding path program 3 times [2022-07-19 22:18:54,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:18:54,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985545059] [2022-07-19 22:18:54,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:54,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:18:54,329 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:18:54,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [962600122] [2022-07-19 22:18:54,330 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-19 22:18:54,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:18:54,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:18:54,332 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 22:18:54,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-07-19 22:18:55,997 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2022-07-19 22:18:55,997 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 22:18:56,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 3044 conjuncts, 112 conjunts are in the unsatisfiable core [2022-07-19 22:18:56,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:18:57,313 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_10966 Int)) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| (store (select |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_10966)) |c_#memory_int|)) is different from true [2022-07-19 22:18:58,059 INFO L356 Elim1Store]: treesize reduction 33, result has 38.9 percent of original size [2022-07-19 22:18:58,060 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 37 [2022-07-19 22:19:05,786 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| Int) (v_ArrVal_10968 Int)) (and (<= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| |c_aws_mul_size_checked_#in~r#1.offset|) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| (store (select |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| v_ArrVal_10968)) |c_#memory_int|))) is different from true [2022-07-19 22:19:11,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 22:19:11,128 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-07-19 22:19:11,128 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 35 [2022-07-19 22:19:13,491 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 264 proven. 47 refuted. 7 times theorem prover too weak. 185 trivial. 9 not checked. [2022-07-19 22:19:13,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 22:19:14,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:19:14,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985545059] [2022-07-19 22:19:14,014 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:19:14,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962600122] [2022-07-19 22:19:14,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962600122] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 22:19:14,015 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-19 22:19:14,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2022-07-19 22:19:14,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704656678] [2022-07-19 22:19:14,015 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-19 22:19:14,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-07-19 22:19:14,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:19:14,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-07-19 22:19:14,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=668, Unknown=7, NotChecked=106, Total=870 [2022-07-19 22:19:14,016 INFO L87 Difference]: Start difference. First operand 938 states and 1486 transitions. Second operand has 25 states, 23 states have (on average 6.565217391304348) internal successors, (151), 23 states have internal predecessors, (151), 14 states have call successors, (36), 5 states have call predecessors, (36), 10 states have return successors, (35), 14 states have call predecessors, (35), 13 states have call successors, (35) [2022-07-19 22:19:18,385 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_10966 Int)) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| (store (select |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_10966)) |c_#memory_int|)) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| Int) (v_ArrVal_10968 Int)) (and (<= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| |c_aws_mul_size_checked_#in~r#1.offset|) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| (store (select |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| v_ArrVal_10968)) |c_#memory_int|)))) is different from true [2022-07-19 22:19:57,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:19:57,334 INFO L93 Difference]: Finished difference Result 2046 states and 3547 transitions. [2022-07-19 22:19:57,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-07-19 22:19:57,335 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 6.565217391304348) internal successors, (151), 23 states have internal predecessors, (151), 14 states have call successors, (36), 5 states have call predecessors, (36), 10 states have return successors, (35), 14 states have call predecessors, (35), 13 states have call successors, (35) Word has length 297 [2022-07-19 22:19:57,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:19:57,347 INFO L225 Difference]: With dead ends: 2046 [2022-07-19 22:19:57,347 INFO L226 Difference]: Without dead ends: 1338 [2022-07-19 22:19:57,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 285 SyntacticMatches, 8 SemanticMatches, 45 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 49.0s TimeCoverageRelationStatistics Valid=224, Invalid=1650, Unknown=30, NotChecked=258, Total=2162 [2022-07-19 22:19:57,354 INFO L413 NwaCegarLoop]: 675 mSDtfsCounter, 328 mSDsluCounter, 5383 mSDsCounter, 0 mSdLazyCounter, 5552 mSolverCounterSat, 275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 6058 SdHoareTripleChecker+Invalid, 9164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 275 IncrementalHoareTripleChecker+Valid, 5552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3337 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-07-19 22:19:57,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 6058 Invalid, 9164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [275 Valid, 5552 Invalid, 0 Unknown, 3337 Unchecked, 11.3s Time] [2022-07-19 22:19:57,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1338 states. [2022-07-19 22:19:57,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1338 to 1013. [2022-07-19 22:19:57,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 716 states have (on average 1.1717877094972067) internal successors, (839), 720 states have internal predecessors, (839), 213 states have call successors, (213), 57 states have call predecessors, (213), 82 states have return successors, (580), 236 states have call predecessors, (580), 211 states have call successors, (580) [2022-07-19 22:19:57,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1632 transitions. [2022-07-19 22:19:57,466 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1632 transitions. Word has length 297 [2022-07-19 22:19:57,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:19:57,466 INFO L495 AbstractCegarLoop]: Abstraction has 1013 states and 1632 transitions. [2022-07-19 22:19:57,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 6.565217391304348) internal successors, (151), 23 states have internal predecessors, (151), 14 states have call successors, (36), 5 states have call predecessors, (36), 10 states have return successors, (35), 14 states have call predecessors, (35), 13 states have call successors, (35) [2022-07-19 22:19:57,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1632 transitions. [2022-07-19 22:19:57,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-07-19 22:19:57,471 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:19:57,471 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:19:57,517 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2022-07-19 22:19:57,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-07-19 22:19:57,688 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:19:57,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:19:57,688 INFO L85 PathProgramCache]: Analyzing trace with hash -582501060, now seen corresponding path program 1 times [2022-07-19 22:19:57,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:19:57,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609730883] [2022-07-19 22:19:57,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:19:57,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:19:57,774 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:19:57,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [716178709] [2022-07-19 22:19:57,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:19:57,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:19:57,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:19:57,776 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 22:19:57,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-07-19 22:19:59,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:59,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 3582 conjuncts, 271 conjunts are in the unsatisfiable core [2022-07-19 22:19:59,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:19:59,436 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_11350 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_11350))) (exists ((v_ArrVal_11349 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_11349))))) is different from true [2022-07-19 22:19:59,459 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_11349 (Array Int Int)) (v_ArrVal_11350 (Array Int Int))) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_11350)) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_11349)))) is different from true [2022-07-19 22:19:59,527 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-19 22:19:59,528 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 36 treesize of output 42 [2022-07-19 22:19:59,543 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-19 22:19:59,543 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 34 treesize of output 40 [2022-07-19 22:19:59,557 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 [2022-07-19 22:19:59,560 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-07-19 22:19:59,806 INFO L356 Elim1Store]: treesize reduction 75, result has 10.7 percent of original size [2022-07-19 22:19:59,806 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 69 treesize of output 89 [2022-07-19 22:19:59,816 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 185 [2022-07-19 22:19:59,827 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 [2022-07-19 22:19:59,838 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 166 treesize of output 144 [2022-07-19 22:19:59,859 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 144 treesize of output 43 [2022-07-19 22:20:00,327 WARN L855 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_86| Int)) (= (select ((as const (Array Int Int)) 0) 40) (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_86|) 40))) (exists ((v_DerPreprocessor_20 (Array Int Int)) (|v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_86| Int) (|ULTIMATE.start_aws_priority_queue_pop_harness_~#old_queue~0#1.base| Int)) (let ((.cse0 (select v_DerPreprocessor_20 40)) (.cse2 (select v_DerPreprocessor_20 56)) (.cse4 (select v_DerPreprocessor_20 64)) (.cse5 (select v_DerPreprocessor_20 72)) (.cse3 (select v_DerPreprocessor_20 80)) (.cse6 (select v_DerPreprocessor_20 48)) (.cse1 (select |c_#memory_$Pointer$.offset| |ULTIMATE.start_aws_priority_queue_pop_harness_~#old_queue~0#1.base|))) (and (= (select ((as const (Array Int Int)) 0) 40) .cse0) (= (select .cse1 56) .cse2) (= .cse3 (select .cse1 80)) (= (select .cse1 64) .cse4) (= .cse5 (select .cse1 72)) (= (select .cse1 40) (select (select (store |c_#memory_$Pointer$.offset| |ULTIMATE.start_aws_priority_queue_pop_harness_~#old_queue~0#1.base| v_DerPreprocessor_20) |v_ULTIMATE.start_aws_priority_queue_pop_harness_~#queue~0#1.base_BEFORE_CALL_86|) 40)) (= (store (store (store (store (store (store (store (store (store (store (store (store .cse1 40 .cse0) 48 .cse6) 56 .cse2) 64 .cse4) 72 .cse5) 80 .cse3) 40 .cse0) 48 .cse6) 56 .cse2) 64 .cse4) 72 .cse5) 80 .cse3) v_DerPreprocessor_20) (= .cse6 (select .cse1 48)))))) is different from true [2022-07-19 22:20:01,108 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_11376 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_11376))) (exists ((v_ArrVal_11375 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_11375) |c_#memory_$Pointer$.base|)))) is different from true [2022-07-19 22:20:02,672 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_11377 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_11377))) (exists ((v_ArrVal_11378 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_11378) |c_#memory_int|)) (exists ((v_ArrVal_11379 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_11379))))) is different from true [2022-07-19 22:20:02,691 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_11379 (Array Int Int)) (v_ArrVal_11378 (Array Int Int)) (v_ArrVal_11377 (Array Int Int))) (and (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_11378) |c_#memory_int|) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_11379)) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_11377)))) is different from true [2022-07-19 22:20:02,774 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-19 22:20:02,775 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 [2022-07-19 22:20:02,783 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