./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 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_push_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 d8b9169d0d63d8238da177db4999afabb0efa6e97e1e7cd257e8474f76788f17 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 13:34:10,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 13:34:10,298 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 13:34:10,333 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 13:34:10,333 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 13:34:10,336 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 13:34:10,338 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 13:34:10,342 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 13:34:10,344 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 13:34:10,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 13:34:10,348 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 13:34:10,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 13:34:10,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 13:34:10,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 13:34:10,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 13:34:10,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 13:34:10,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 13:34:10,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 13:34:10,359 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 13:34:10,362 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 13:34:10,364 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 13:34:10,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 13:34:10,365 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 13:34:10,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 13:34:10,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 13:34:10,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 13:34:10,373 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 13:34:10,374 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 13:34:10,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 13:34:10,381 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 13:34:10,381 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 13:34:10,382 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 13:34:10,383 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 13:34:10,384 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 13:34:10,384 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 13:34:10,385 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 13:34:10,385 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 13:34:10,385 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 13:34:10,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 13:34:10,387 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 13:34:10,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 13:34:10,391 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 13:34:10,414 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 13:34:10,415 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 13:34:10,415 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 13:34:10,416 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 13:34:10,417 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 13:34:10,417 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 13:34:10,417 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 13:34:10,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 13:34:10,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 13:34:10,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 13:34:10,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 13:34:10,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 13:34:10,419 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 13:34:10,419 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 13:34:10,419 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 13:34:10,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 13:34:10,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 13:34:10,419 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 13:34:10,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 13:34:10,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 13:34:10,420 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 13:34:10,420 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 13:34:10,420 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 13:34:10,420 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 13:34:10,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 13:34:10,421 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 13:34:10,421 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 13:34:10,421 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 13:34:10,421 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 13:34:10,421 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8b9169d0d63d8238da177db4999afabb0efa6e97e1e7cd257e8474f76788f17 [2021-11-05 13:34:10,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 13:34:10,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 13:34:10,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 13:34:10,726 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 13:34:10,727 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 13:34:10,728 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i [2021-11-05 13:34:10,792 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a65e0c7a4/7e0aa2a5356d4ca185014de6ac7edf22/FLAGfa5b11102 [2021-11-05 13:34:11,317 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 13:34:11,318 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i [2021-11-05 13:34:11,344 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a65e0c7a4/7e0aa2a5356d4ca185014de6ac7edf22/FLAGfa5b11102 [2021-11-05 13:34:11,802 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a65e0c7a4/7e0aa2a5356d4ca185014de6ac7edf22 [2021-11-05 13:34:11,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 13:34:11,806 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 13:34:11,808 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 13:34:11,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 13:34:11,811 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 13:34:11,812 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 01:34:11" (1/1) ... [2021-11-05 13:34:11,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29e618b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:34:11, skipping insertion in model container [2021-11-05 13:34:11,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 01:34:11" (1/1) ... [2021-11-05 13:34:11,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 13:34:11,910 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 13:34:12,092 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4497,4510] [2021-11-05 13:34:12,098 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4557,4570] [2021-11-05 13:34:12,111 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 13:34:12,115 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 13:34:12,625 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:12,628 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:12,629 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:12,630 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:12,631 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:12,642 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:12,645 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:12,647 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:12,649 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:12,652 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:12,653 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:12,653 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:12,654 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:12,885 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 13:34:12,888 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 13:34:12,888 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 13:34:12,889 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 13:34:12,902 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 13:34:12,902 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 13:34:12,903 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 13:34:12,903 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 13:34:12,903 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 13:34:12,904 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 13:34:13,030 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 13:34:13,061 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,078 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,141 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,142 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,143 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,143 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,143 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,143 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,144 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,145 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,145 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,145 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,146 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,146 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,146 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,149 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,149 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,149 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,149 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,158 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,159 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,170 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,171 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,171 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 13:34:13,218 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 13:34:13,235 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4497,4510] [2021-11-05 13:34:13,236 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4557,4570] [2021-11-05 13:34:13,239 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 13:34:13,241 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 13:34:13,294 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,295 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,295 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,295 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,295 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,298 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,299 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,299 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,299 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,300 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,300 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,300 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,300 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,330 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 13:34:13,330 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 13:34:13,330 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 13:34:13,331 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 13:34:13,331 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 13:34:13,331 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 13:34:13,332 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 13:34:13,332 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 13:34:13,332 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 13:34:13,332 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 13:34:13,377 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 13:34:13,385 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,387 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,415 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,415 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,416 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,416 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,416 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,417 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,417 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,417 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,418 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,418 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,418 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,419 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,419 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,420 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,421 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,421 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,421 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,423 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,423 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,427 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,428 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,428 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:34:13,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 13:34:13,653 INFO L208 MainTranslator]: Completed translation [2021-11-05 13:34:13,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:34:13 WrapperNode [2021-11-05 13:34:13,672 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 13:34:13,673 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 13:34:13,673 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 13:34:13,674 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 13:34:13,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:34:13" (1/1) ... [2021-11-05 13:34:13,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:34:13" (1/1) ... [2021-11-05 13:34:14,140 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 13:34:14,141 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 13:34:14,141 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 13:34:14,141 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 13:34:14,148 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:34:13" (1/1) ... [2021-11-05 13:34:14,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:34:13" (1/1) ... [2021-11-05 13:34:14,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:34:13" (1/1) ... [2021-11-05 13:34:14,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:34:13" (1/1) ... [2021-11-05 13:34:14,408 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:34:13" (1/1) ... [2021-11-05 13:34:14,442 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:34:13" (1/1) ... [2021-11-05 13:34:14,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:34:13" (1/1) ... [2021-11-05 13:34:14,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 13:34:14,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 13:34:14,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 13:34:14,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 13:34:14,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:34:13" (1/1) ... [2021-11-05 13:34:14,516 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 13:34:14,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:34:14,533 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-05 13:34:14,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-05 13:34:14,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 13:34:14,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 13:34:14,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 13:34:14,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 13:34:14,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 13:34:14,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 13:34:14,563 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-05 13:34:14,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 13:34:14,563 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-05 13:34:14,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 13:34:14,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 13:34:14,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 13:34:14,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 13:34:29,999 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 13:34:30,000 INFO L299 CfgBuilder]: Removed 1945 assume(true) statements. [2021-11-05 13:34:30,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:34:30 BoogieIcfgContainer [2021-11-05 13:34:30,006 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 13:34:30,007 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 13:34:30,008 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 13:34:30,011 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 13:34:30,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 01:34:11" (1/3) ... [2021-11-05 13:34:30,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33680979 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 01:34:30, skipping insertion in model container [2021-11-05 13:34:30,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:34:13" (2/3) ... [2021-11-05 13:34:30,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33680979 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 01:34:30, skipping insertion in model container [2021-11-05 13:34:30,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:34:30" (3/3) ... [2021-11-05 13:34:30,018 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_push_harness.i [2021-11-05 13:34:30,022 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 13:34:30,023 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 64 error locations. [2021-11-05 13:34:30,073 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 13:34:30,090 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-05 13:34:30,092 INFO L340 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2021-11-05 13:34:30,134 INFO L276 IsEmpty]: Start isEmpty. Operand has 2417 states, 2352 states have (on average 1.4136904761904763) internal successors, (3325), 2416 states have internal predecessors, (3325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:34:30,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-05 13:34:30,148 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:34:30,148 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:34:30,149 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-05 13:34:30,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:34:30,153 INFO L85 PathProgramCache]: Analyzing trace with hash -938316165, now seen corresponding path program 1 times [2021-11-05 13:34:30,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:34:30,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458875133] [2021-11-05 13:34:30,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:34:30,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:34:30,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:34:30,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:34:30,758 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:34:30,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458875133] [2021-11-05 13:34:30,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458875133] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:34:30,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:34:30,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 13:34:30,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182727406] [2021-11-05 13:34:30,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:34:30,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 13:34:30,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:34:30,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 13:34:30,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 13:34:30,808 INFO L87 Difference]: Start difference. First operand has 2417 states, 2352 states have (on average 1.4136904761904763) internal successors, (3325), 2416 states have internal predecessors, (3325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:34:30,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:34:30,927 INFO L93 Difference]: Finished difference Result 4828 states and 6643 transitions. [2021-11-05 13:34:30,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 13:34:30,930 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-11-05 13:34:30,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:34:30,957 INFO L225 Difference]: With dead ends: 4828 [2021-11-05 13:34:30,958 INFO L226 Difference]: Without dead ends: 2412 [2021-11-05 13:34:30,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 13:34:30,971 INFO L933 BasicCegarLoop]: 3124 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3124 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.71ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 13:34:30,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 3124 Invalid, 0 Unknown, 0 Unchecked, 10.71ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 13:34:30,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2021-11-05 13:34:31,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 2412. [2021-11-05 13:34:31,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2412 states, 2348 states have (on average 1.3283645655877343) internal successors, (3119), 2411 states have internal predecessors, (3119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:34:31,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2412 states to 2412 states and 3119 transitions. [2021-11-05 13:34:31,087 INFO L78 Accepts]: Start accepts. Automaton has 2412 states and 3119 transitions. Word has length 68 [2021-11-05 13:34:31,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:34:31,088 INFO L470 AbstractCegarLoop]: Abstraction has 2412 states and 3119 transitions. [2021-11-05 13:34:31,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:34:31,088 INFO L276 IsEmpty]: Start isEmpty. Operand 2412 states and 3119 transitions. [2021-11-05 13:34:31,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-05 13:34:31,091 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:34:31,092 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:34:31,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 13:34:31,093 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-05 13:34:31,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:34:31,094 INFO L85 PathProgramCache]: Analyzing trace with hash -438718995, now seen corresponding path program 1 times [2021-11-05 13:34:31,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:34:31,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973426408] [2021-11-05 13:34:31,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:34:31,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:34:31,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:34:31,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:34:31,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:34:31,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973426408] [2021-11-05 13:34:31,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973426408] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:34:31,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:34:31,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 13:34:31,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600224359] [2021-11-05 13:34:31,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:34:31,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 13:34:31,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:34:31,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 13:34:31,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 13:34:31,433 INFO L87 Difference]: Start difference. First operand 2412 states and 3119 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:34:31,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:34:31,692 INFO L93 Difference]: Finished difference Result 4744 states and 6133 transitions. [2021-11-05 13:34:31,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 13:34:31,693 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-11-05 13:34:31,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:34:31,700 INFO L225 Difference]: With dead ends: 4744 [2021-11-05 13:34:31,700 INFO L226 Difference]: Without dead ends: 2412 [2021-11-05 13:34:31,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 53.45ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 13:34:31,705 INFO L933 BasicCegarLoop]: 3104 mSDtfsCounter, 3313 mSDsluCounter, 2860 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 133.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3313 SdHoareTripleChecker+Valid, 5964 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.11ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 157.05ms IncrementalHoareTripleChecker+Time [2021-11-05 13:34:31,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3313 Valid, 5964 Invalid, 54 Unknown, 0 Unchecked, 14.11ms Time], IncrementalHoareTripleChecker [5 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 157.05ms Time] [2021-11-05 13:34:31,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2021-11-05 13:34:31,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 2412. [2021-11-05 13:34:31,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2412 states, 2348 states have (on average 1.3270868824531517) internal successors, (3116), 2411 states have internal predecessors, (3116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:34:31,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2412 states to 2412 states and 3116 transitions. [2021-11-05 13:34:31,752 INFO L78 Accepts]: Start accepts. Automaton has 2412 states and 3116 transitions. Word has length 68 [2021-11-05 13:34:31,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:34:31,754 INFO L470 AbstractCegarLoop]: Abstraction has 2412 states and 3116 transitions. [2021-11-05 13:34:31,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:34:31,754 INFO L276 IsEmpty]: Start isEmpty. Operand 2412 states and 3116 transitions. [2021-11-05 13:34:31,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-05 13:34:31,760 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:34:31,760 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:34:31,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 13:34:31,761 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-05 13:34:31,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:34:31,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1398884469, now seen corresponding path program 1 times [2021-11-05 13:34:31,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:34:31,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137898350] [2021-11-05 13:34:31,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:34:31,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:34:31,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:34:32,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:34:32,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:34:32,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137898350] [2021-11-05 13:34:32,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137898350] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:34:32,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:34:32,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 13:34:32,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272080821] [2021-11-05 13:34:32,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:34:32,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 13:34:32,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:34:32,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 13:34:32,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-05 13:34:32,074 INFO L87 Difference]: Start difference. First operand 2412 states and 3116 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:34:35,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:34:35,078 INFO L93 Difference]: Finished difference Result 6605 states and 8475 transitions. [2021-11-05 13:34:35,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 13:34:35,079 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-11-05 13:34:35,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:34:35,092 INFO L225 Difference]: With dead ends: 6605 [2021-11-05 13:34:35,093 INFO L226 Difference]: Without dead ends: 4241 [2021-11-05 13:34:35,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 79.79ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-05 13:34:35,099 INFO L933 BasicCegarLoop]: 3083 mSDtfsCounter, 7896 mSDsluCounter, 5136 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2433.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7896 SdHoareTripleChecker+Valid, 8219 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 31.36ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2732.49ms IncrementalHoareTripleChecker+Time [2021-11-05 13:34:35,100 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7896 Valid, 8219 Invalid, 855 Unknown, 0 Unchecked, 31.36ms Time], IncrementalHoareTripleChecker [20 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 2732.49ms Time] [2021-11-05 13:34:35,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4241 states. [2021-11-05 13:34:35,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4241 to 2412. [2021-11-05 13:34:35,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2412 states, 2348 states have (on average 1.325809199318569) internal successors, (3113), 2411 states have internal predecessors, (3113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:34:35,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2412 states to 2412 states and 3113 transitions. [2021-11-05 13:34:35,173 INFO L78 Accepts]: Start accepts. Automaton has 2412 states and 3113 transitions. Word has length 76 [2021-11-05 13:34:35,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:34:35,174 INFO L470 AbstractCegarLoop]: Abstraction has 2412 states and 3113 transitions. [2021-11-05 13:34:35,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:34:35,174 INFO L276 IsEmpty]: Start isEmpty. Operand 2412 states and 3113 transitions. [2021-11-05 13:34:35,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-05 13:34:35,188 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:34:35,188 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:34:35,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 13:34:35,188 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-05 13:34:35,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:34:35,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1863320387, now seen corresponding path program 1 times [2021-11-05 13:34:35,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:34:35,189 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362285673] [2021-11-05 13:34:35,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:34:35,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:34:35,264 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 13:34:35,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [366992120] [2021-11-05 13:34:35,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:34:35,265 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:34:35,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:34:35,276 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 13:34:35,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-05 13:34:36,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:34:36,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 2770 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-05 13:34:36,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:34:36,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:34:36,532 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 13:34:36,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:34:36,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362285673] [2021-11-05 13:34:36,532 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 13:34:36,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366992120] [2021-11-05 13:34:36,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366992120] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:34:36,532 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:34:36,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 13:34:36,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229304354] [2021-11-05 13:34:36,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:34:36,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 13:34:36,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:34:36,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 13:34:36,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-05 13:34:36,534 INFO L87 Difference]: Start difference. First operand 2412 states and 3113 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:34:38,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:34:38,615 INFO L93 Difference]: Finished difference Result 6681 states and 8583 transitions. [2021-11-05 13:34:38,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 13:34:38,619 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-11-05 13:34:38,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:34:38,638 INFO L225 Difference]: With dead ends: 6681 [2021-11-05 13:34:38,639 INFO L226 Difference]: Without dead ends: 4348 [2021-11-05 13:34:38,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 158.72ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-05 13:34:38,649 INFO L933 BasicCegarLoop]: 2961 mSDtfsCounter, 13970 mSDsluCounter, 5470 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1461.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13970 SdHoareTripleChecker+Valid, 8431 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.85ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1660.83ms IncrementalHoareTripleChecker+Time [2021-11-05 13:34:38,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13970 Valid, 8431 Invalid, 509 Unknown, 0 Unchecked, 25.85ms Time], IncrementalHoareTripleChecker [20 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 1660.83ms Time] [2021-11-05 13:34:38,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4348 states. [2021-11-05 13:34:38,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4348 to 2412. [2021-11-05 13:34:38,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2412 states, 2348 states have (on average 1.3245315161839863) internal successors, (3110), 2411 states have internal predecessors, (3110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:34:38,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2412 states to 2412 states and 3110 transitions. [2021-11-05 13:34:38,730 INFO L78 Accepts]: Start accepts. Automaton has 2412 states and 3110 transitions. Word has length 92 [2021-11-05 13:34:38,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:34:38,731 INFO L470 AbstractCegarLoop]: Abstraction has 2412 states and 3110 transitions. [2021-11-05 13:34:38,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:34:38,731 INFO L276 IsEmpty]: Start isEmpty. Operand 2412 states and 3110 transitions. [2021-11-05 13:34:38,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-05 13:34:38,732 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:34:38,733 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:34:38,760 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-05 13:34:38,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:34:38,960 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-05 13:34:38,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:34:38,961 INFO L85 PathProgramCache]: Analyzing trace with hash 2019865383, now seen corresponding path program 1 times [2021-11-05 13:34:38,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:34:38,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520250841] [2021-11-05 13:34:38,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:34:38,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:34:39,035 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 13:34:39,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1906539983] [2021-11-05 13:34:39,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:34:39,036 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:34:39,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:34:39,052 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 13:34:39,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-05 13:34:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:34:39,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 2875 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-05 13:34:39,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:34:40,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:34:40,310 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 13:34:40,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:34:40,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520250841] [2021-11-05 13:34:40,310 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 13:34:40,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906539983] [2021-11-05 13:34:40,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906539983] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:34:40,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:34:40,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 13:34:40,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527991865] [2021-11-05 13:34:40,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:34:40,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 13:34:40,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:34:40,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 13:34:40,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-05 13:34:40,319 INFO L87 Difference]: Start difference. First operand 2412 states and 3110 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:34:44,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:34:44,226 INFO L93 Difference]: Finished difference Result 6697 states and 8601 transitions. [2021-11-05 13:34:44,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-05 13:34:44,227 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-05 13:34:44,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:34:44,240 INFO L225 Difference]: With dead ends: 6697 [2021-11-05 13:34:44,240 INFO L226 Difference]: Without dead ends: 4348 [2021-11-05 13:34:44,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 241.29ms TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2021-11-05 13:34:44,245 INFO L933 BasicCegarLoop]: 2928 mSDtfsCounter, 14168 mSDsluCounter, 7618 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3077.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14168 SdHoareTripleChecker+Valid, 10546 SdHoareTripleChecker+Invalid, 1313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 33.44ms SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3463.84ms IncrementalHoareTripleChecker+Time [2021-11-05 13:34:44,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14168 Valid, 10546 Invalid, 1313 Unknown, 0 Unchecked, 33.44ms Time], IncrementalHoareTripleChecker [46 Valid, 1267 Invalid, 0 Unknown, 0 Unchecked, 3463.84ms Time] [2021-11-05 13:34:44,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4348 states. [2021-11-05 13:34:44,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4348 to 2412. [2021-11-05 13:34:44,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2412 states, 2348 states have (on average 1.3232538330494037) internal successors, (3107), 2411 states have internal predecessors, (3107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:34:44,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2412 states to 2412 states and 3107 transitions. [2021-11-05 13:34:44,316 INFO L78 Accepts]: Start accepts. Automaton has 2412 states and 3107 transitions. Word has length 116 [2021-11-05 13:34:44,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:34:44,318 INFO L470 AbstractCegarLoop]: Abstraction has 2412 states and 3107 transitions. [2021-11-05 13:34:44,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:34:44,319 INFO L276 IsEmpty]: Start isEmpty. Operand 2412 states and 3107 transitions. [2021-11-05 13:34:44,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-05 13:34:44,320 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:34:44,320 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:34:44,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-05 13:34:44,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:34:44,535 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-05 13:34:44,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:34:44,536 INFO L85 PathProgramCache]: Analyzing trace with hash 584501871, now seen corresponding path program 1 times [2021-11-05 13:34:44,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:34:44,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984640943] [2021-11-05 13:34:44,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:34:44,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:34:44,604 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 13:34:44,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [88033989] [2021-11-05 13:34:44,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:34:44,604 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:34:44,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:34:44,605 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 13:34:44,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-05 13:34:45,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:34:45,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 3065 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-05 13:34:45,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:34:46,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:34:46,091 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 13:34:46,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:34:46,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984640943] [2021-11-05 13:34:46,092 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 13:34:46,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88033989] [2021-11-05 13:34:46,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88033989] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:34:46,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:34:46,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 13:34:46,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359751351] [2021-11-05 13:34:46,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:34:46,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 13:34:46,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:34:46,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 13:34:46,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-05 13:34:46,098 INFO L87 Difference]: Start difference. First operand 2412 states and 3107 transitions. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:34:46,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:34:46,911 INFO L93 Difference]: Finished difference Result 4631 states and 5963 transitions. [2021-11-05 13:34:46,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 13:34:46,912 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2021-11-05 13:34:46,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:34:46,935 INFO L225 Difference]: With dead ends: 4631 [2021-11-05 13:34:46,937 INFO L226 Difference]: Without dead ends: 2412 [2021-11-05 13:34:46,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 138.88ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-05 13:34:46,949 INFO L933 BasicCegarLoop]: 2971 mSDtfsCounter, 10907 mSDsluCounter, 1313 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 556.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10907 SdHoareTripleChecker+Valid, 4284 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.76ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 626.32ms IncrementalHoareTripleChecker+Time [2021-11-05 13:34:46,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10907 Valid, 4284 Invalid, 231 Unknown, 0 Unchecked, 10.76ms Time], IncrementalHoareTripleChecker [13 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 626.32ms Time] [2021-11-05 13:34:46,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2021-11-05 13:34:47,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 2412. [2021-11-05 13:34:47,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2412 states, 2348 states have (on average 1.3224020442930153) internal successors, (3105), 2411 states have internal predecessors, (3105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:34:47,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2412 states to 2412 states and 3105 transitions. [2021-11-05 13:34:47,067 INFO L78 Accepts]: Start accepts. Automaton has 2412 states and 3105 transitions. Word has length 132 [2021-11-05 13:34:47,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:34:47,067 INFO L470 AbstractCegarLoop]: Abstraction has 2412 states and 3105 transitions. [2021-11-05 13:34:47,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:34:47,083 INFO L276 IsEmpty]: Start isEmpty. Operand 2412 states and 3105 transitions. [2021-11-05 13:34:47,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-05 13:34:47,084 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:34:47,085 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:34:47,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-05 13:34:47,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:34:47,285 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-05 13:34:47,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:34:47,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1488405602, now seen corresponding path program 1 times [2021-11-05 13:34:47,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:34:47,286 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828457263] [2021-11-05 13:34:47,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:34:47,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:34:47,406 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 13:34:47,406 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1083398435] [2021-11-05 13:34:47,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:34:47,407 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:34:47,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:34:47,408 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 13:34:47,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-05 13:34:48,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:34:48,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 3096 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-05 13:34:48,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:34:48,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:34:48,938 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 13:34:48,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:34:48,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828457263] [2021-11-05 13:34:48,939 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 13:34:48,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083398435] [2021-11-05 13:34:48,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083398435] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:34:48,939 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:34:48,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 13:34:48,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151983894] [2021-11-05 13:34:48,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:34:48,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 13:34:48,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:34:48,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 13:34:48,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-05 13:34:48,942 INFO L87 Difference]: Start difference. First operand 2412 states and 3105 transitions. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:34:51,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:34:51,799 INFO L93 Difference]: Finished difference Result 5310 states and 6806 transitions. [2021-11-05 13:34:51,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-05 13:34:51,800 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2021-11-05 13:34:51,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:34:51,809 INFO L225 Difference]: With dead ends: 5310 [2021-11-05 13:34:51,809 INFO L226 Difference]: Without dead ends: 3059 [2021-11-05 13:34:51,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 183.03ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-05 13:34:51,814 INFO L933 BasicCegarLoop]: 3054 mSDtfsCounter, 10296 mSDsluCounter, 3628 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2244.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10296 SdHoareTripleChecker+Valid, 6682 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.50ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2563.54ms IncrementalHoareTripleChecker+Time [2021-11-05 13:34:51,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10296 Valid, 6682 Invalid, 849 Unknown, 0 Unchecked, 15.50ms Time], IncrementalHoareTripleChecker [32 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 2563.54ms Time] [2021-11-05 13:34:51,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3059 states. [2021-11-05 13:34:51,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3059 to 2412. [2021-11-05 13:34:51,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2412 states, 2348 states have (on average 1.321550255536627) internal successors, (3103), 2411 states have internal predecessors, (3103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:34:51,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2412 states to 2412 states and 3103 transitions. [2021-11-05 13:34:51,879 INFO L78 Accepts]: Start accepts. Automaton has 2412 states and 3103 transitions. Word has length 136 [2021-11-05 13:34:51,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:34:51,880 INFO L470 AbstractCegarLoop]: Abstraction has 2412 states and 3103 transitions. [2021-11-05 13:34:51,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:34:51,881 INFO L276 IsEmpty]: Start isEmpty. Operand 2412 states and 3103 transitions. [2021-11-05 13:34:51,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-05 13:34:51,882 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:34:51,882 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:34:51,907 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-05 13:34:52,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:34:52,099 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-05 13:34:52,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:34:52,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1661426758, now seen corresponding path program 1 times [2021-11-05 13:34:52,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:34:52,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116617004] [2021-11-05 13:34:52,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:34:52,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:34:52,196 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 13:34:52,197 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [265439775] [2021-11-05 13:34:52,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:34:52,197 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:34:52,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:34:52,198 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 13:34:52,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-05 13:34:53,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:34:53,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 3191 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-05 13:34:53,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:34:53,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:34:53,907 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 13:34:53,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:34:53,908 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116617004] [2021-11-05 13:34:53,908 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 13:34:53,908 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265439775] [2021-11-05 13:34:53,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [265439775] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:34:53,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:34:53,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 13:34:53,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648558760] [2021-11-05 13:34:53,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:34:53,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 13:34:53,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:34:53,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 13:34:53,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-05 13:34:53,909 INFO L87 Difference]: Start difference. First operand 2412 states and 3103 transitions. Second operand has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 6 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:34:55,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:34:55,208 INFO L93 Difference]: Finished difference Result 5338 states and 6845 transitions. [2021-11-05 13:34:55,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-05 13:34:55,209 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 6 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2021-11-05 13:34:55,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:34:55,220 INFO L225 Difference]: With dead ends: 5338 [2021-11-05 13:34:55,220 INFO L226 Difference]: Without dead ends: 3118 [2021-11-05 13:34:55,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 223.07ms TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2021-11-05 13:34:55,225 INFO L933 BasicCegarLoop]: 2932 mSDtfsCounter, 16266 mSDsluCounter, 2451 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 870.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16266 SdHoareTripleChecker+Valid, 5383 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.40ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 976.76ms IncrementalHoareTripleChecker+Time [2021-11-05 13:34:55,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16266 Valid, 5383 Invalid, 407 Unknown, 0 Unchecked, 17.40ms Time], IncrementalHoareTripleChecker [37 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 976.76ms Time] [2021-11-05 13:34:55,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3118 states. [2021-11-05 13:34:55,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3118 to 2412. [2021-11-05 13:34:55,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2412 states, 2348 states have (on average 1.3206984667802386) internal successors, (3101), 2411 states have internal predecessors, (3101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:34:55,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2412 states to 2412 states and 3101 transitions. [2021-11-05 13:34:55,330 INFO L78 Accepts]: Start accepts. Automaton has 2412 states and 3101 transitions. Word has length 144 [2021-11-05 13:34:55,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:34:55,331 INFO L470 AbstractCegarLoop]: Abstraction has 2412 states and 3101 transitions. [2021-11-05 13:34:55,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 6 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:34:55,331 INFO L276 IsEmpty]: Start isEmpty. Operand 2412 states and 3101 transitions. [2021-11-05 13:34:55,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-05 13:34:55,332 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:34:55,333 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:34:55,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-05 13:34:55,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:34:55,549 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-05 13:34:55,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:34:55,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1690290133, now seen corresponding path program 1 times [2021-11-05 13:34:55,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:34:55,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792465255] [2021-11-05 13:34:55,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:34:55,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:34:55,617 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 13:34:55,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [107110669] [2021-11-05 13:34:55,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:34:55,617 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:34:55,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:34:55,618 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) [2021-11-05 13:34:55,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-05 13:34:56,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:34:56,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 3243 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-05 13:34:56,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:34:56,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:34:56,692 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 13:34:56,692 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:34:56,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792465255] [2021-11-05 13:34:56,692 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 13:34:56,693 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107110669] [2021-11-05 13:34:56,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [107110669] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:34:56,693 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:34:56,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 13:34:56,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429789500] [2021-11-05 13:34:56,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:34:56,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 13:34:56,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:34:56,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 13:34:56,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 13:34:56,694 INFO L87 Difference]: Start difference. First operand 2412 states and 3101 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:34:57,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:34:57,173 INFO L93 Difference]: Finished difference Result 4805 states and 6179 transitions. [2021-11-05 13:34:57,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 13:34:57,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2021-11-05 13:34:57,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:34:57,180 INFO L225 Difference]: With dead ends: 4805 [2021-11-05 13:34:57,191 INFO L226 Difference]: Without dead ends: 2460 [2021-11-05 13:34:57,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.75ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 13:34:57,196 INFO L933 BasicCegarLoop]: 3093 mSDtfsCounter, 26 mSDsluCounter, 6070 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 357.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 9163 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.11ms SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 394.83ms IncrementalHoareTripleChecker+Time [2021-11-05 13:34:57,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 9163 Invalid, 235 Unknown, 0 Unchecked, 6.11ms Time], IncrementalHoareTripleChecker [45 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 394.83ms Time] [2021-11-05 13:34:57,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2460 states. [2021-11-05 13:34:57,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2460 to 2436. [2021-11-05 13:34:57,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2436 states, 2372 states have (on average 1.3174536256323777) internal successors, (3125), 2435 states have internal predecessors, (3125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:34:57,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2436 states to 2436 states and 3125 transitions. [2021-11-05 13:34:57,302 INFO L78 Accepts]: Start accepts. Automaton has 2436 states and 3125 transitions. Word has length 156 [2021-11-05 13:34:57,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:34:57,303 INFO L470 AbstractCegarLoop]: Abstraction has 2436 states and 3125 transitions. [2021-11-05 13:34:57,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:34:57,304 INFO L276 IsEmpty]: Start isEmpty. Operand 2436 states and 3125 transitions. [2021-11-05 13:34:57,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-05 13:34:57,305 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:34:57,305 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:34:57,329 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-05 13:34:57,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:34:57,506 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-05 13:34:57,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:34:57,506 INFO L85 PathProgramCache]: Analyzing trace with hash -2084656919, now seen corresponding path program 1 times [2021-11-05 13:34:57,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:34:57,506 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029883360] [2021-11-05 13:34:57,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:34:57,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:34:57,647 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 13:34:57,647 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [309843223] [2021-11-05 13:34:57,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:34:57,647 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:34:57,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:34:57,648 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) [2021-11-05 13:34:57,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-05 13:34:58,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:34:58,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 3238 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-05 13:34:58,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:34:59,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:34:59,195 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 13:34:59,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:34:59,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029883360] [2021-11-05 13:34:59,196 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 13:34:59,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309843223] [2021-11-05 13:34:59,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309843223] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:34:59,196 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:34:59,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-05 13:34:59,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462976397] [2021-11-05 13:34:59,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:34:59,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-05 13:34:59,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:34:59,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-05 13:34:59,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-05 13:34:59,197 INFO L87 Difference]: Start difference. First operand 2436 states and 3125 transitions. Second operand has 8 states, 8 states have (on average 19.5) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:03,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:35:03,038 INFO L93 Difference]: Finished difference Result 5398 states and 6909 transitions. [2021-11-05 13:35:03,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-05 13:35:03,039 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2021-11-05 13:35:03,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:35:03,046 INFO L225 Difference]: With dead ends: 5398 [2021-11-05 13:35:03,047 INFO L226 Difference]: Without dead ends: 3142 [2021-11-05 13:35:03,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 374.12ms TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2021-11-05 13:35:03,050 INFO L933 BasicCegarLoop]: 2880 mSDtfsCounter, 16567 mSDsluCounter, 4479 mSDsCounter, 0 mSdLazyCounter, 1146 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2916.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16567 SdHoareTripleChecker+Valid, 7359 SdHoareTripleChecker+Invalid, 1235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.92ms SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3276.99ms IncrementalHoareTripleChecker+Time [2021-11-05 13:35:03,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16567 Valid, 7359 Invalid, 1235 Unknown, 0 Unchecked, 21.92ms Time], IncrementalHoareTripleChecker [89 Valid, 1146 Invalid, 0 Unknown, 0 Unchecked, 3276.99ms Time] [2021-11-05 13:35:03,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3142 states. [2021-11-05 13:35:03,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3142 to 2436. [2021-11-05 13:35:03,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2436 states, 2372 states have (on average 1.316610455311973) internal successors, (3123), 2435 states have internal predecessors, (3123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:03,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2436 states to 2436 states and 3123 transitions. [2021-11-05 13:35:03,110 INFO L78 Accepts]: Start accepts. Automaton has 2436 states and 3123 transitions. Word has length 156 [2021-11-05 13:35:03,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:35:03,110 INFO L470 AbstractCegarLoop]: Abstraction has 2436 states and 3123 transitions. [2021-11-05 13:35:03,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:03,110 INFO L276 IsEmpty]: Start isEmpty. Operand 2436 states and 3123 transitions. [2021-11-05 13:35:03,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-05 13:35:03,111 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:35:03,112 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:35:03,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-05 13:35:03,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:35:03,327 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-05 13:35:03,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:35:03,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1933015475, now seen corresponding path program 1 times [2021-11-05 13:35:03,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:35:03,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750555776] [2021-11-05 13:35:03,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:35:03,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:35:03,405 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 13:35:03,405 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [99002337] [2021-11-05 13:35:03,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:35:03,405 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:35:03,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:35:03,420 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) [2021-11-05 13:35:03,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-05 13:35:04,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:35:04,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 3333 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-05 13:35:04,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:35:05,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:35:05,207 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 13:35:05,207 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:35:05,207 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750555776] [2021-11-05 13:35:05,207 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 13:35:05,207 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99002337] [2021-11-05 13:35:05,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99002337] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:35:05,207 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:35:05,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 13:35:05,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766265085] [2021-11-05 13:35:05,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:35:05,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 13:35:05,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:35:05,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 13:35:05,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-05 13:35:05,209 INFO L87 Difference]: Start difference. First operand 2436 states and 3123 transitions. Second operand has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 6 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:08,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:35:08,195 INFO L93 Difference]: Finished difference Result 4653 states and 5967 transitions. [2021-11-05 13:35:08,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 13:35:08,195 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 6 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 164 [2021-11-05 13:35:08,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:35:08,205 INFO L225 Difference]: With dead ends: 4653 [2021-11-05 13:35:08,205 INFO L226 Difference]: Without dead ends: 2436 [2021-11-05 13:35:08,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 187.10ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-05 13:35:08,209 INFO L933 BasicCegarLoop]: 2942 mSDtfsCounter, 12016 mSDsluCounter, 2523 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2417.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12016 SdHoareTripleChecker+Valid, 5465 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.83ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2730.52ms IncrementalHoareTripleChecker+Time [2021-11-05 13:35:08,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12016 Valid, 5465 Invalid, 953 Unknown, 0 Unchecked, 19.83ms Time], IncrementalHoareTripleChecker [4 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 2730.52ms Time] [2021-11-05 13:35:08,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2436 states. [2021-11-05 13:35:08,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2436 to 2436. [2021-11-05 13:35:08,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2436 states, 2372 states have (on average 1.315345699831366) internal successors, (3120), 2435 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:08,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2436 states to 2436 states and 3120 transitions. [2021-11-05 13:35:08,266 INFO L78 Accepts]: Start accepts. Automaton has 2436 states and 3120 transitions. Word has length 164 [2021-11-05 13:35:08,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:35:08,266 INFO L470 AbstractCegarLoop]: Abstraction has 2436 states and 3120 transitions. [2021-11-05 13:35:08,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 6 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:08,266 INFO L276 IsEmpty]: Start isEmpty. Operand 2436 states and 3120 transitions. [2021-11-05 13:35:08,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-11-05 13:35:08,268 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:35:08,269 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:35:08,293 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-05 13:35:08,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-05 13:35:08,492 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-05 13:35:08,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:35:08,492 INFO L85 PathProgramCache]: Analyzing trace with hash -977522511, now seen corresponding path program 1 times [2021-11-05 13:35:08,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:35:08,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419508583] [2021-11-05 13:35:08,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:35:08,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:35:08,550 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 13:35:08,551 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1730295496] [2021-11-05 13:35:08,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:35:08,551 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:35:08,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:35:08,552 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) [2021-11-05 13:35:08,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-05 13:35:09,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:35:09,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 3428 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-05 13:35:09,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:35:10,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:35:10,163 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 13:35:10,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:35:10,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419508583] [2021-11-05 13:35:10,163 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 13:35:10,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730295496] [2021-11-05 13:35:10,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730295496] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:35:10,163 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:35:10,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-05 13:35:10,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512397083] [2021-11-05 13:35:10,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:35:10,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-05 13:35:10,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:35:10,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-05 13:35:10,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-05 13:35:10,165 INFO L87 Difference]: Start difference. First operand 2436 states and 3120 transitions. Second operand has 8 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:13,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:35:13,236 INFO L93 Difference]: Finished difference Result 5041 states and 6467 transitions. [2021-11-05 13:35:13,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-05 13:35:13,237 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 172 [2021-11-05 13:35:13,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:35:13,241 INFO L225 Difference]: With dead ends: 5041 [2021-11-05 13:35:13,241 INFO L226 Difference]: Without dead ends: 2848 [2021-11-05 13:35:13,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 242.27ms TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2021-11-05 13:35:13,249 INFO L933 BasicCegarLoop]: 2976 mSDtfsCounter, 15716 mSDsluCounter, 4538 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2387.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15716 SdHoareTripleChecker+Valid, 7514 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.66ms SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2715.15ms IncrementalHoareTripleChecker+Time [2021-11-05 13:35:13,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15716 Valid, 7514 Invalid, 974 Unknown, 0 Unchecked, 25.66ms Time], IncrementalHoareTripleChecker [91 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 2715.15ms Time] [2021-11-05 13:35:13,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2848 states. [2021-11-05 13:35:13,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2848 to 2436. [2021-11-05 13:35:13,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2436 states, 2372 states have (on average 1.3115514333895446) internal successors, (3111), 2435 states have internal predecessors, (3111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:13,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2436 states to 2436 states and 3111 transitions. [2021-11-05 13:35:13,338 INFO L78 Accepts]: Start accepts. Automaton has 2436 states and 3111 transitions. Word has length 172 [2021-11-05 13:35:13,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:35:13,339 INFO L470 AbstractCegarLoop]: Abstraction has 2436 states and 3111 transitions. [2021-11-05 13:35:13,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:13,339 INFO L276 IsEmpty]: Start isEmpty. Operand 2436 states and 3111 transitions. [2021-11-05 13:35:13,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-05 13:35:13,340 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:35:13,340 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:35:13,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-05 13:35:13,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:35:13,560 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-05 13:35:13,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:35:13,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1683999865, now seen corresponding path program 1 times [2021-11-05 13:35:13,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:35:13,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484533143] [2021-11-05 13:35:13,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:35:13,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:35:13,625 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 13:35:13,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [231773285] [2021-11-05 13:35:13,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:35:13,625 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:35:13,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:35:13,640 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) [2021-11-05 13:35:13,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-05 13:35:14,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:35:14,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 3618 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-05 13:35:14,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:35:15,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:35:15,003 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 13:35:15,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:35:15,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484533143] [2021-11-05 13:35:15,003 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 13:35:15,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231773285] [2021-11-05 13:35:15,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [231773285] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:35:15,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:35:15,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 13:35:15,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024569172] [2021-11-05 13:35:15,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:35:15,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 13:35:15,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:35:15,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 13:35:15,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-05 13:35:15,004 INFO L87 Difference]: Start difference. First operand 2436 states and 3111 transitions. Second operand has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:17,047 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:35:19,155 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:35:21,317 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:35:34,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:35:34,396 INFO L93 Difference]: Finished difference Result 6863 states and 8749 transitions. [2021-11-05 13:35:34,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-05 13:35:34,398 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 188 [2021-11-05 13:35:34,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:35:34,406 INFO L225 Difference]: With dead ends: 6863 [2021-11-05 13:35:34,406 INFO L226 Difference]: Without dead ends: 4498 [2021-11-05 13:35:34,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 271.31ms TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-05 13:35:34,412 INFO L933 BasicCegarLoop]: 4927 mSDtfsCounter, 2527 mSDsluCounter, 15740 mSDsCounter, 0 mSdLazyCounter, 4550 mSolverCounterSat, 91 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16885.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2527 SdHoareTripleChecker+Valid, 20667 SdHoareTripleChecker+Invalid, 4644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 52.28ms SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 4550 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18759.08ms IncrementalHoareTripleChecker+Time [2021-11-05 13:35:34,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2527 Valid, 20667 Invalid, 4644 Unknown, 0 Unchecked, 52.28ms Time], IncrementalHoareTripleChecker [91 Valid, 4550 Invalid, 3 Unknown, 0 Unchecked, 18759.08ms Time] [2021-11-05 13:35:34,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4498 states. [2021-11-05 13:35:34,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4498 to 2460. [2021-11-05 13:35:34,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2460 states, 2396 states have (on average 1.3084307178631052) internal successors, (3135), 2459 states have internal predecessors, (3135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:34,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2460 states to 2460 states and 3135 transitions. [2021-11-05 13:35:34,500 INFO L78 Accepts]: Start accepts. Automaton has 2460 states and 3135 transitions. Word has length 188 [2021-11-05 13:35:34,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:35:34,501 INFO L470 AbstractCegarLoop]: Abstraction has 2460 states and 3135 transitions. [2021-11-05 13:35:34,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:34,502 INFO L276 IsEmpty]: Start isEmpty. Operand 2460 states and 3135 transitions. [2021-11-05 13:35:34,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-05 13:35:34,502 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:35:34,503 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:35:34,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-05 13:35:34,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-05 13:35:34,716 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-05 13:35:34,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:35:34,716 INFO L85 PathProgramCache]: Analyzing trace with hash -222403401, now seen corresponding path program 1 times [2021-11-05 13:35:34,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:35:34,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563701968] [2021-11-05 13:35:34,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:35:34,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:35:34,780 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 13:35:34,780 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [811522165] [2021-11-05 13:35:34,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:35:34,781 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:35:34,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:35:34,800 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) [2021-11-05 13:35:34,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-05 13:35:35,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:35:35,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 3615 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-05 13:35:35,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:35:36,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:35:36,297 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 13:35:36,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:35:36,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563701968] [2021-11-05 13:35:36,297 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 13:35:36,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811522165] [2021-11-05 13:35:36,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811522165] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:35:36,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:35:36,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 13:35:36,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104516017] [2021-11-05 13:35:36,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:35:36,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 13:35:36,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:35:36,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 13:35:36,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 13:35:36,299 INFO L87 Difference]: Start difference. First operand 2460 states and 3135 transitions. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:36,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:35:36,834 INFO L93 Difference]: Finished difference Result 4893 states and 6237 transitions. [2021-11-05 13:35:36,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 13:35:36,835 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 188 [2021-11-05 13:35:36,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:35:36,839 INFO L225 Difference]: With dead ends: 4893 [2021-11-05 13:35:36,840 INFO L226 Difference]: Without dead ends: 2508 [2021-11-05 13:35:36,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 41.57ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 13:35:36,844 INFO L933 BasicCegarLoop]: 3063 mSDtfsCounter, 32 mSDsluCounter, 6042 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 376.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 9105 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.24ms SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 428.72ms IncrementalHoareTripleChecker+Time [2021-11-05 13:35:36,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 9105 Invalid, 209 Unknown, 0 Unchecked, 5.24ms Time], IncrementalHoareTripleChecker [45 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 428.72ms Time] [2021-11-05 13:35:36,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2508 states. [2021-11-05 13:35:36,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2508 to 2484. [2021-11-05 13:35:36,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2484 states, 2420 states have (on average 1.3053719008264464) internal successors, (3159), 2483 states have internal predecessors, (3159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:36,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2484 states to 2484 states and 3159 transitions. [2021-11-05 13:35:36,942 INFO L78 Accepts]: Start accepts. Automaton has 2484 states and 3159 transitions. Word has length 188 [2021-11-05 13:35:36,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:35:36,942 INFO L470 AbstractCegarLoop]: Abstraction has 2484 states and 3159 transitions. [2021-11-05 13:35:36,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:36,943 INFO L276 IsEmpty]: Start isEmpty. Operand 2484 states and 3159 transitions. [2021-11-05 13:35:36,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-05 13:35:36,944 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:35:36,944 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:35:36,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-05 13:35:37,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-05 13:35:37,160 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-05 13:35:37,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:35:37,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1279134603, now seen corresponding path program 1 times [2021-11-05 13:35:37,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:35:37,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42186624] [2021-11-05 13:35:37,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:35:37,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:35:37,240 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 13:35:37,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [321521108] [2021-11-05 13:35:37,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:35:37,241 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:35:37,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:35:37,242 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) [2021-11-05 13:35:37,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-05 13:35:38,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:35:38,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 3610 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-05 13:35:38,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:35:39,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:35:39,058 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 13:35:39,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:35:39,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42186624] [2021-11-05 13:35:39,058 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 13:35:39,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321521108] [2021-11-05 13:35:39,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321521108] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:35:39,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:35:39,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 13:35:39,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405565943] [2021-11-05 13:35:39,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:35:39,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 13:35:39,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:35:39,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 13:35:39,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-05 13:35:39,059 INFO L87 Difference]: Start difference. First operand 2484 states and 3159 transitions. Second operand has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:39,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:35:39,400 INFO L93 Difference]: Finished difference Result 7202 states and 9165 transitions. [2021-11-05 13:35:39,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 13:35:39,402 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 188 [2021-11-05 13:35:39,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:35:39,410 INFO L225 Difference]: With dead ends: 7202 [2021-11-05 13:35:39,411 INFO L226 Difference]: Without dead ends: 4874 [2021-11-05 13:35:39,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 231.98ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-05 13:35:39,416 INFO L933 BasicCegarLoop]: 3079 mSDtfsCounter, 5911 mSDsluCounter, 12318 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5911 SdHoareTripleChecker+Valid, 15397 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.92ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 77.94ms IncrementalHoareTripleChecker+Time [2021-11-05 13:35:39,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5911 Valid, 15397 Invalid, 42 Unknown, 0 Unchecked, 10.92ms Time], IncrementalHoareTripleChecker [5 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 77.94ms Time] [2021-11-05 13:35:39,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4874 states. [2021-11-05 13:35:39,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4874 to 2543. [2021-11-05 13:35:39,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2543 states, 2479 states have (on average 1.3041549011698266) internal successors, (3233), 2542 states have internal predecessors, (3233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:39,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2543 states to 2543 states and 3233 transitions. [2021-11-05 13:35:39,516 INFO L78 Accepts]: Start accepts. Automaton has 2543 states and 3233 transitions. Word has length 188 [2021-11-05 13:35:39,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:35:39,516 INFO L470 AbstractCegarLoop]: Abstraction has 2543 states and 3233 transitions. [2021-11-05 13:35:39,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:39,517 INFO L276 IsEmpty]: Start isEmpty. Operand 2543 states and 3233 transitions. [2021-11-05 13:35:39,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-05 13:35:39,518 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:35:39,519 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:35:39,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-05 13:35:39,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-05 13:35:39,741 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-05 13:35:39,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:35:39,742 INFO L85 PathProgramCache]: Analyzing trace with hash 2021138995, now seen corresponding path program 1 times [2021-11-05 13:35:39,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:35:39,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845684864] [2021-11-05 13:35:39,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:35:39,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:35:39,826 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 13:35:39,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [381641934] [2021-11-05 13:35:39,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:35:39,827 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:35:39,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:35:39,828 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) [2021-11-05 13:35:39,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-05 13:35:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:35:40,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 3607 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-05 13:35:40,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:35:41,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:35:41,499 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 13:35:41,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:35:41,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845684864] [2021-11-05 13:35:41,499 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 13:35:41,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381641934] [2021-11-05 13:35:41,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381641934] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:35:41,500 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:35:41,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 13:35:41,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590373519] [2021-11-05 13:35:41,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:35:41,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 13:35:41,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:35:41,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 13:35:41,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-05 13:35:41,501 INFO L87 Difference]: Start difference. First operand 2543 states and 3233 transitions. Second operand has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:41,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:35:41,948 INFO L93 Difference]: Finished difference Result 7143 states and 9089 transitions. [2021-11-05 13:35:41,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 13:35:41,949 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 188 [2021-11-05 13:35:41,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:35:41,956 INFO L225 Difference]: With dead ends: 7143 [2021-11-05 13:35:41,957 INFO L226 Difference]: Without dead ends: 4874 [2021-11-05 13:35:41,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 237.38ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-05 13:35:41,961 INFO L933 BasicCegarLoop]: 3079 mSDtfsCounter, 5773 mSDsluCounter, 12318 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 81.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5773 SdHoareTripleChecker+Valid, 15397 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.74ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 86.68ms IncrementalHoareTripleChecker+Time [2021-11-05 13:35:41,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5773 Valid, 15397 Invalid, 42 Unknown, 0 Unchecked, 10.74ms Time], IncrementalHoareTripleChecker [5 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 86.68ms Time] [2021-11-05 13:35:41,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4874 states. [2021-11-05 13:35:42,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4874 to 2602. [2021-11-05 13:35:42,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2602 states, 2538 states have (on average 1.3029944838455476) internal successors, (3307), 2601 states have internal predecessors, (3307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:42,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2602 states to 2602 states and 3307 transitions. [2021-11-05 13:35:42,060 INFO L78 Accepts]: Start accepts. Automaton has 2602 states and 3307 transitions. Word has length 188 [2021-11-05 13:35:42,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:35:42,060 INFO L470 AbstractCegarLoop]: Abstraction has 2602 states and 3307 transitions. [2021-11-05 13:35:42,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:42,061 INFO L276 IsEmpty]: Start isEmpty. Operand 2602 states and 3307 transitions. [2021-11-05 13:35:42,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-05 13:35:42,062 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:35:42,062 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:35:42,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-05 13:35:42,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-05 13:35:42,288 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-05 13:35:42,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:35:42,288 INFO L85 PathProgramCache]: Analyzing trace with hash -334666255, now seen corresponding path program 1 times [2021-11-05 13:35:42,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:35:42,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296335686] [2021-11-05 13:35:42,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:35:42,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:35:42,365 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 13:35:42,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [973315011] [2021-11-05 13:35:42,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:35:42,366 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:35:42,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:35:42,367 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) [2021-11-05 13:35:42,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-05 13:35:43,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:35:43,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 3604 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-05 13:35:43,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:35:43,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:35:43,785 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 13:35:43,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:35:43,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296335686] [2021-11-05 13:35:43,785 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 13:35:43,786 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973315011] [2021-11-05 13:35:43,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [973315011] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:35:43,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:35:43,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 13:35:43,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546904867] [2021-11-05 13:35:43,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:35:43,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 13:35:43,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:35:43,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 13:35:43,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-05 13:35:43,787 INFO L87 Difference]: Start difference. First operand 2602 states and 3307 transitions. Second operand has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:44,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:35:44,170 INFO L93 Difference]: Finished difference Result 7123 states and 9063 transitions. [2021-11-05 13:35:44,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 13:35:44,170 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 188 [2021-11-05 13:35:44,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:35:44,177 INFO L225 Difference]: With dead ends: 7123 [2021-11-05 13:35:44,177 INFO L226 Difference]: Without dead ends: 4874 [2021-11-05 13:35:44,183 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 234.94ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-05 13:35:44,184 INFO L933 BasicCegarLoop]: 3079 mSDtfsCounter, 5661 mSDsluCounter, 12318 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 75.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5661 SdHoareTripleChecker+Valid, 15397 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.67ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 81.21ms IncrementalHoareTripleChecker+Time [2021-11-05 13:35:44,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5661 Valid, 15397 Invalid, 40 Unknown, 0 Unchecked, 10.67ms Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 81.21ms Time] [2021-11-05 13:35:44,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4874 states. [2021-11-05 13:35:44,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4874 to 2622. [2021-11-05 13:35:44,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2622 states, 2558 states have (on average 1.302189210320563) internal successors, (3331), 2621 states have internal predecessors, (3331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:44,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2622 states to 2622 states and 3331 transitions. [2021-11-05 13:35:44,299 INFO L78 Accepts]: Start accepts. Automaton has 2622 states and 3331 transitions. Word has length 188 [2021-11-05 13:35:44,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:35:44,300 INFO L470 AbstractCegarLoop]: Abstraction has 2622 states and 3331 transitions. [2021-11-05 13:35:44,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:44,300 INFO L276 IsEmpty]: Start isEmpty. Operand 2622 states and 3331 transitions. [2021-11-05 13:35:44,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-05 13:35:44,301 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:35:44,301 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:35:44,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-05 13:35:44,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:35:44,524 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-05 13:35:44,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:35:44,525 INFO L85 PathProgramCache]: Analyzing trace with hash -59906641, now seen corresponding path program 1 times [2021-11-05 13:35:44,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:35:44,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886604497] [2021-11-05 13:35:44,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:35:44,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:35:44,588 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 13:35:44,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1125290313] [2021-11-05 13:35:44,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:35:44,589 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:35:44,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:35:44,590 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) [2021-11-05 13:35:44,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-05 13:35:45,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:35:45,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 3601 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-05 13:35:45,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:35:45,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:35:45,944 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 13:35:45,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:35:45,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886604497] [2021-11-05 13:35:45,944 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 13:35:45,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125290313] [2021-11-05 13:35:45,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125290313] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:35:45,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:35:45,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 13:35:45,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150714158] [2021-11-05 13:35:45,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:35:45,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 13:35:45,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:35:45,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 13:35:45,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 13:35:45,945 INFO L87 Difference]: Start difference. First operand 2622 states and 3331 transitions. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:46,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:35:46,710 INFO L93 Difference]: Finished difference Result 4950 states and 6293 transitions. [2021-11-05 13:35:46,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 13:35:46,711 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 188 [2021-11-05 13:35:46,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:35:46,714 INFO L225 Difference]: With dead ends: 4950 [2021-11-05 13:35:46,714 INFO L226 Difference]: Without dead ends: 2563 [2021-11-05 13:35:46,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.08ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 13:35:46,718 INFO L933 BasicCegarLoop]: 3086 mSDtfsCounter, 1 mSDsluCounter, 5940 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 549.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 9026 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.01ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 621.27ms IncrementalHoareTripleChecker+Time [2021-11-05 13:35:46,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 9026 Invalid, 234 Unknown, 0 Unchecked, 6.01ms Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 621.27ms Time] [2021-11-05 13:35:46,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2563 states. [2021-11-05 13:35:46,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2563 to 2563. [2021-11-05 13:35:46,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2563 states, 2499 states have (on average 1.302921168467387) internal successors, (3256), 2562 states have internal predecessors, (3256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:46,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2563 states to 2563 states and 3256 transitions. [2021-11-05 13:35:46,811 INFO L78 Accepts]: Start accepts. Automaton has 2563 states and 3256 transitions. Word has length 188 [2021-11-05 13:35:46,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:35:46,811 INFO L470 AbstractCegarLoop]: Abstraction has 2563 states and 3256 transitions. [2021-11-05 13:35:46,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:46,812 INFO L276 IsEmpty]: Start isEmpty. Operand 2563 states and 3256 transitions. [2021-11-05 13:35:46,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-05 13:35:46,813 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:35:46,813 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:35:46,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-05 13:35:47,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-05 13:35:47,040 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-05 13:35:47,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:35:47,040 INFO L85 PathProgramCache]: Analyzing trace with hash -694362953, now seen corresponding path program 1 times [2021-11-05 13:35:47,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:35:47,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969771544] [2021-11-05 13:35:47,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:35:47,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:35:47,108 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 13:35:47,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [432194167] [2021-11-05 13:35:47,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:35:47,108 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:35:47,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:35:47,112 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) [2021-11-05 13:35:47,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-05 13:35:47,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:35:47,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 3613 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-05 13:35:47,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:35:48,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:35:48,486 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 13:35:48,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:35:48,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969771544] [2021-11-05 13:35:48,486 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 13:35:48,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432194167] [2021-11-05 13:35:48,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432194167] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:35:48,486 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:35:48,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 13:35:48,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881734516] [2021-11-05 13:35:48,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:35:48,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 13:35:48,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:35:48,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 13:35:48,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 13:35:48,487 INFO L87 Difference]: Start difference. First operand 2563 states and 3256 transitions. Second operand has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:48,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:35:48,838 INFO L93 Difference]: Finished difference Result 7033 states and 8946 transitions. [2021-11-05 13:35:48,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 13:35:48,839 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 188 [2021-11-05 13:35:48,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:35:48,845 INFO L225 Difference]: With dead ends: 7033 [2021-11-05 13:35:48,845 INFO L226 Difference]: Without dead ends: 4564 [2021-11-05 13:35:48,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 70.11ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-05 13:35:48,850 INFO L933 BasicCegarLoop]: 5462 mSDtfsCounter, 2492 mSDsluCounter, 13980 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 134.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2492 SdHoareTripleChecker+Valid, 19442 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.24ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 146.21ms IncrementalHoareTripleChecker+Time [2021-11-05 13:35:48,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2492 Valid, 19442 Invalid, 58 Unknown, 0 Unchecked, 10.24ms Time], IncrementalHoareTripleChecker [6 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 146.21ms Time] [2021-11-05 13:35:48,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4564 states. [2021-11-05 13:35:48,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4564 to 2563. [2021-11-05 13:35:48,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2563 states, 2499 states have (on average 1.3025210084033614) internal successors, (3255), 2562 states have internal predecessors, (3255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:48,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2563 states to 2563 states and 3255 transitions. [2021-11-05 13:35:48,959 INFO L78 Accepts]: Start accepts. Automaton has 2563 states and 3255 transitions. Word has length 188 [2021-11-05 13:35:48,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:35:48,959 INFO L470 AbstractCegarLoop]: Abstraction has 2563 states and 3255 transitions. [2021-11-05 13:35:48,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:48,959 INFO L276 IsEmpty]: Start isEmpty. Operand 2563 states and 3255 transitions. [2021-11-05 13:35:48,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-11-05 13:35:48,960 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:35:48,961 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:35:48,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-05 13:35:49,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:35:49,184 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-05 13:35:49,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:35:49,184 INFO L85 PathProgramCache]: Analyzing trace with hash -606250993, now seen corresponding path program 1 times [2021-11-05 13:35:49,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:35:49,184 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895234088] [2021-11-05 13:35:49,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:35:49,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:35:49,247 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 13:35:49,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [224847638] [2021-11-05 13:35:49,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:35:49,248 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:35:49,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:35:49,249 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) [2021-11-05 13:35:49,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-05 13:35:50,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:35:50,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 3635 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-05 13:35:50,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:35:50,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:35:50,741 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 13:35:50,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:35:50,741 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895234088] [2021-11-05 13:35:50,742 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 13:35:50,742 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [224847638] [2021-11-05 13:35:50,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [224847638] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:35:50,742 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:35:50,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 13:35:50,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166313333] [2021-11-05 13:35:50,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:35:50,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 13:35:50,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:35:50,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 13:35:50,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 13:35:50,743 INFO L87 Difference]: Start difference. First operand 2563 states and 3255 transitions. Second operand has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:51,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:35:51,640 INFO L93 Difference]: Finished difference Result 7218 states and 9145 transitions. [2021-11-05 13:35:51,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-05 13:35:51,641 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2021-11-05 13:35:51,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:35:51,647 INFO L225 Difference]: With dead ends: 7218 [2021-11-05 13:35:51,647 INFO L226 Difference]: Without dead ends: 4739 [2021-11-05 13:35:51,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 52.02ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-05 13:35:51,651 INFO L933 BasicCegarLoop]: 5685 mSDtfsCounter, 2786 mSDsluCounter, 14113 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 604.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2786 SdHoareTripleChecker+Valid, 19798 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.77ms SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 669.02ms IncrementalHoareTripleChecker+Time [2021-11-05 13:35:51,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2786 Valid, 19798 Invalid, 333 Unknown, 0 Unchecked, 10.77ms Time], IncrementalHoareTripleChecker [56 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 669.02ms Time] [2021-11-05 13:35:51,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4739 states. [2021-11-05 13:35:51,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4739 to 2615. [2021-11-05 13:35:51,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2615 states, 2551 states have (on average 1.2963543708349667) internal successors, (3307), 2614 states have internal predecessors, (3307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:51,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2615 states to 2615 states and 3307 transitions. [2021-11-05 13:35:51,766 INFO L78 Accepts]: Start accepts. Automaton has 2615 states and 3307 transitions. Word has length 191 [2021-11-05 13:35:51,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:35:51,767 INFO L470 AbstractCegarLoop]: Abstraction has 2615 states and 3307 transitions. [2021-11-05 13:35:51,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.2) internal successors, (191), 5 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:35:51,767 INFO L276 IsEmpty]: Start isEmpty. Operand 2615 states and 3307 transitions. [2021-11-05 13:35:51,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-11-05 13:35:51,768 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:35:51,768 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:35:51,796 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-05 13:35:51,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:35:51,984 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-05 13:35:51,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:35:51,984 INFO L85 PathProgramCache]: Analyzing trace with hash -620535023, now seen corresponding path program 1 times [2021-11-05 13:35:51,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:35:51,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842332983] [2021-11-05 13:35:51,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:35:51,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:35:52,045 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 13:35:52,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1127996380] [2021-11-05 13:35:52,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:35:52,047 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:35:52,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:35:52,048 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) [2021-11-05 13:35:52,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-05 13:35:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:35:53,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 3632 conjuncts, 75 conjunts are in the unsatisfiable core [2021-11-05 13:35:53,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:35:54,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:35:54,706 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 13:35:54,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:35:54,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842332983] [2021-11-05 13:35:54,706 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 13:35:54,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127996380] [2021-11-05 13:35:54,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127996380] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:35:54,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:35:54,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-05 13:35:54,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143676716] [2021-11-05 13:35:54,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:35:54,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-05 13:35:54,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:35:54,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-05 13:35:54,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-11-05 13:35:54,707 INFO L87 Difference]: Start difference. First operand 2615 states and 3307 transitions. Second operand has 13 states, 13 states have (on average 14.692307692307692) internal successors, (191), 13 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:36:04,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:36:04,341 INFO L93 Difference]: Finished difference Result 10044 states and 12635 transitions. [2021-11-05 13:36:04,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-05 13:36:04,342 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 14.692307692307692) internal successors, (191), 13 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2021-11-05 13:36:04,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:36:04,356 INFO L225 Difference]: With dead ends: 10044 [2021-11-05 13:36:04,357 INFO L226 Difference]: Without dead ends: 7517 [2021-11-05 13:36:04,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 1997.01ms TimeCoverageRelationStatistics Valid=421, Invalid=1559, Unknown=0, NotChecked=0, Total=1980 [2021-11-05 13:36:04,365 INFO L933 BasicCegarLoop]: 7297 mSDtfsCounter, 10910 mSDsluCounter, 38071 mSDsCounter, 0 mSdLazyCounter, 2850 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6570.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10910 SdHoareTripleChecker+Valid, 45368 SdHoareTripleChecker+Invalid, 3012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 60.94ms SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 2850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7260.79ms IncrementalHoareTripleChecker+Time [2021-11-05 13:36:04,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10910 Valid, 45368 Invalid, 3012 Unknown, 0 Unchecked, 60.94ms Time], IncrementalHoareTripleChecker [162 Valid, 2850 Invalid, 0 Unknown, 0 Unchecked, 7260.79ms Time] [2021-11-05 13:36:04,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7517 states. [2021-11-05 13:36:04,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7517 to 2642. [2021-11-05 13:36:04,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2642 states, 2578 states have (on average 1.2967416602017068) internal successors, (3343), 2641 states have internal predecessors, (3343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:36:04,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2642 states to 2642 states and 3343 transitions. [2021-11-05 13:36:04,525 INFO L78 Accepts]: Start accepts. Automaton has 2642 states and 3343 transitions. Word has length 191 [2021-11-05 13:36:04,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:36:04,525 INFO L470 AbstractCegarLoop]: Abstraction has 2642 states and 3343 transitions. [2021-11-05 13:36:04,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 14.692307692307692) internal successors, (191), 13 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:36:04,526 INFO L276 IsEmpty]: Start isEmpty. Operand 2642 states and 3343 transitions. [2021-11-05 13:36:04,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-11-05 13:36:04,527 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:36:04,527 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:36:04,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-05 13:36:04,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:36:04,737 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-05 13:36:04,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:36:04,738 INFO L85 PathProgramCache]: Analyzing trace with hash 921302737, now seen corresponding path program 1 times [2021-11-05 13:36:04,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:36:04,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502325310] [2021-11-05 13:36:04,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:36:04,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:36:04,788 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 13:36:04,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1961383294] [2021-11-05 13:36:04,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:36:04,789 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:36:04,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:36:04,790 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) [2021-11-05 13:36:04,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-05 13:36:05,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:36:05,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 3622 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-05 13:36:05,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:36:06,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:36:06,010 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 13:36:06,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:36:06,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502325310] [2021-11-05 13:36:06,011 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 13:36:06,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961383294] [2021-11-05 13:36:06,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961383294] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:36:06,011 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:36:06,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 13:36:06,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790455774] [2021-11-05 13:36:06,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:36:06,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 13:36:06,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:36:06,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 13:36:06,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 13:36:06,012 INFO L87 Difference]: Start difference. First operand 2642 states and 3343 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:36:10,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:36:10,053 INFO L93 Difference]: Finished difference Result 5726 states and 7313 transitions. [2021-11-05 13:36:10,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 13:36:10,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2021-11-05 13:36:10,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:36:10,058 INFO L225 Difference]: With dead ends: 5726 [2021-11-05 13:36:10,058 INFO L226 Difference]: Without dead ends: 3131 [2021-11-05 13:36:10,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.95ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 13:36:10,062 INFO L933 BasicCegarLoop]: 3389 mSDtfsCounter, 720 mSDsluCounter, 4826 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3331.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 8215 SdHoareTripleChecker+Invalid, 1805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.04ms SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3811.15ms IncrementalHoareTripleChecker+Time [2021-11-05 13:36:10,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [720 Valid, 8215 Invalid, 1805 Unknown, 0 Unchecked, 15.04ms Time], IncrementalHoareTripleChecker [381 Valid, 1424 Invalid, 0 Unknown, 0 Unchecked, 3811.15ms Time] [2021-11-05 13:36:10,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3131 states. [2021-11-05 13:36:10,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3131 to 2834. [2021-11-05 13:36:10,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2834 states, 2770 states have (on average 1.2750902527075811) internal successors, (3532), 2833 states have internal predecessors, (3532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:36:10,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2834 states to 2834 states and 3532 transitions. [2021-11-05 13:36:10,175 INFO L78 Accepts]: Start accepts. Automaton has 2834 states and 3532 transitions. Word has length 191 [2021-11-05 13:36:10,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:36:10,175 INFO L470 AbstractCegarLoop]: Abstraction has 2834 states and 3532 transitions. [2021-11-05 13:36:10,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:36:10,176 INFO L276 IsEmpty]: Start isEmpty. Operand 2834 states and 3532 transitions. [2021-11-05 13:36:10,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-11-05 13:36:10,177 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:36:10,177 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:36:10,202 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-05 13:36:10,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:36:10,381 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-05 13:36:10,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:36:10,381 INFO L85 PathProgramCache]: Analyzing trace with hash 789255281, now seen corresponding path program 1 times [2021-11-05 13:36:10,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:36:10,381 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117553313] [2021-11-05 13:36:10,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:36:10,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:36:10,519 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 13:36:10,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1413826719] [2021-11-05 13:36:10,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:36:10,520 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:36:10,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:36:10,527 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) [2021-11-05 13:36:10,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-05 13:36:12,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:36:12,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 3642 conjuncts, 228 conjunts are in the unsatisfiable core [2021-11-05 13:36:12,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:36:13,702 INFO L354 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2021-11-05 13:36:13,711 INFO L388 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 25 treesize of output 23 [2021-11-05 13:36:15,570 INFO L354 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2021-11-05 13:36:15,570 INFO L388 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 48 treesize of output 44 [2021-11-05 13:36:15,626 INFO L354 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2021-11-05 13:36:15,626 INFO L388 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 44 treesize of output 40 [2021-11-05 13:36:16,330 INFO L354 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2021-11-05 13:36:16,331 INFO L388 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 40 treesize of output 38 [2021-11-05 13:36:16,337 INFO L388 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 35 treesize of output 19 [2021-11-05 13:36:16,550 INFO L388 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 23 treesize of output 19 [2021-11-05 13:36:16,556 INFO L388 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 11 treesize of output 7 [2021-11-05 13:36:16,862 INFO L388 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 31 treesize of output 15 [2021-11-05 13:36:16,869 INFO L388 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 15 treesize of output 1 [2021-11-05 13:36:18,075 INFO L354 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2021-11-05 13:36:18,075 INFO L388 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 49 treesize of output 47 [2021-11-05 13:36:18,126 INFO L354 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2021-11-05 13:36:18,127 INFO L388 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 44 treesize of output 42 [2021-11-05 13:36:19,403 INFO L354 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2021-11-05 13:36:19,403 INFO L388 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 45 treesize of output 41 [2021-11-05 13:36:19,453 INFO L354 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2021-11-05 13:36:19,453 INFO L388 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 38 treesize of output 34 [2021-11-05 13:36:20,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-05 13:36:20,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-05 13:36:20,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:36:20,770 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 13:36:20,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:36:20,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117553313] [2021-11-05 13:36:20,770 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 13:36:20,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413826719] [2021-11-05 13:36:20,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413826719] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:36:20,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:36:20,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [49] imperfect sequences [] total 49 [2021-11-05 13:36:20,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754485051] [2021-11-05 13:36:20,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:36:20,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-11-05 13:36:20,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:36:20,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-11-05 13:36:20,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=2206, Unknown=0, NotChecked=0, Total=2352 [2021-11-05 13:36:20,772 INFO L87 Difference]: Start difference. First operand 2834 states and 3532 transitions. Second operand has 49 states, 49 states have (on average 3.979591836734694) internal successors, (195), 49 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:36:22,824 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:36:24,920 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:36:27,052 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:36:29,183 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:36:31,337 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:36:33,457 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:36:35,629 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:36:37,804 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:36:39,921 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:36:42,074 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:36:44,221 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:36:46,398 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:36:48,568 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:36:50,787 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:36:52,953 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:36:55,119 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:36:57,272 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:36:59,420 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:37:01,711 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:37:03,879 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:37:06,078 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:37:08,255 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:37:10,436 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:37:12,608 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:37:14,816 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:37:16,993 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:37:19,169 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:37:21,415 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:37:23,593 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:37:25,794 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15